Thanks for the responses..
I changed the .glade file to GtkBuilder format but now an even more strange bug appears...
------ Build started: Project: gladetest, Configuration: Debug Win32 ------
c:\gtk\include\glib-2.0\gio\gioenums.h(630) : error C2065: 'GLIB_SYSDEF_AF_INET' : undeclared identifier
c:\gtk\include\glib-2.0\gio\gioenums.h(632) : error C2065: 'GLIB_SYSDEF_AF_INET6' : undeclared identifier
c:\gtk\include\glib-2.0\gio\gioenums.h(676) : error C2065: 'GLIB_SYSDEF_MSG_OOB' : undeclared identifier
c:\gtk\include\glib-2.0\gio\gioenums.h(677) : error C2065: 'GLIB_SYSDEF_MSG_PEEK' : undeclared identifier
c:\gtk\include\glib-2.0\gio\gioenums.h(679) : error C2065: 'GLIB_SYSDEF_MSG_DONTROUTE' : undeclared identifier
c:\gtk\include\glib-2.0\gio\giotypes.h(241) : error C2065: 'goffset' : undeclared identifier
c:\gtk\include\glib-2.0\gio\giotypes.h(241) : error C2146: syntax error : missing ')' before identifier 'current_num_bytes'
c:\gtk\include\glib-2.0\gio\giotypes.h(241) : error C2513: 'void *' : no variable declared before '='
c:\gtk\include\glib-2.0\gio\giotypes.h(243) : error C2059: syntax error : ')'
c:\gtk\include\glib-2.0\gio\giotypes.h(259) : error C2061: syntax error : identifier 'goffset'
c:\gtk\include\glib-2.0\gio\gdbusconnection.h(156) : error C2061: syntax error : identifier 'GVariant'
c:\gtk\include\glib-2.0\gio\gdbusconnection.h(163) : error C2061: syntax error : identifier 'GVariant'
c:\gtk\include\glib-2.0\gio\gdbusconnection.h(170) : error C2143: syntax error : missing ';' before '*'
c:\gtk\include\glib-2.0\gio\gdbusconnection.h(170) : error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
c:\gtk\include\glib-2.0\gio\gdbusconnection.h(172) : error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
c:\gtk\include\glib-2.0\gio\gdbusconnection.h(173) : error C2143: syntax error : missing ';' before '*'
c:\gtk\include\glib-2.0\gio\gdbusconnection.h(173) : error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
c:\gtk\include\glib-2.0\gio\gdbusconnection.h(173) : error C2086: 'int GVariant' : redefinition
c:\gtk\include\glib-2.0\gio\gdbusconnection.h(170) : see declaration of 'GVariant'
c:\gtk\include\glib-2.0\gio\gdbusconnection.h(178) : error C2061: syntax error : identifier 'GVariant'
c:\gtk\include\glib-2.0\gio\gdbusconnection.h(183) : error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
c:\gtk\include\glib-2.0\gio\gdbusconnection.h(208) : error C2061: syntax error : identifier 'GVariant'
c:\gtk\include\glib-2.0\gio\gdbusconnection.h(230) : error C2143: syntax error : missing ';' before '*'
c:\gtk\include\glib-2.0\gio\gdbusconnection.h(230) : error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
c:\gtk\include\glib-2.0\gio\gdbusconnection.h(230) : error C2378: 'GVariant' : redefinition; symbol cannot be overloaded with a typedef
c:\gtk\include\glib-2.0\gio\gdbusconnection.h(170) : see declaration of 'GVariant'
c:\gtk\include\glib-2.0\gio\gdbusconnection.h(236) : error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
c:\gtk\include\glib-2.0\gio\gdbusconnection.h(260) : error C2061: syntax error : identifier 'GVariant'
c:\gtk\include\glib-2.0\gio\gdbusconnection.h(282) : error C2146: syntax error : missing ';' before identifier 'get_property'
c:\gtk\include\glib-2.0\gio\gdbusconnection.h(282) : error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
c:\gtk\include\glib-2.0\gio\gdbusconnection.h(282) : error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
c:\gtk\include\glib-2.0\gio\gdbusconnection.h(452) : error C2061: syntax error : identifier 'GVariant'
c:\gtk\include\glib-2.0\gio\gdbusmessage.h(78) : error C2143: syntax error : missing ';' before '*'
c:\gtk\include\glib-2.0\gio\gdbusmessage.h(78) : error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
c:\gtk\include\glib-2.0\gio\gdbusmessage.h(78) : error C2086: 'int GVariant' : redefinition
c:\gtk\include\glib-2.0\gio\gdbusconnection.h(170) : see declaration of 'GVariant'
c:\gtk\include\glib-2.0\gio\gdbusmessage.h(79) : error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
c:\gtk\include\glib-2.0\gio\gdbusmessage.h(82) : error C2061: syntax error : identifier 'GVariant'
c:\gtk\include\glib-2.0\gio\gdbusmessage.h(84) : error C2143: syntax error : missing ';' before '*'
c:\gtk\include\glib-2.0\gio\gdbusmessage.h(84) : error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
c:\gtk\include\glib-2.0\gio\gdbusmessage.h(84) : error C2086: 'int GVariant' : redefinition
c:\gtk\include\glib-2.0\gio\gdbusconnection.h(170) : see declaration of 'GVariant'
c:\gtk\include\glib-2.0\gio\gdbusmessage.h(84) : error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
c:\gtk\include\glib-2.0\gio\gdbusmessage.h(86) : error C2061: syntax error : identifier 'GVariant'
c:\gtk\include\glib-2.0\gio\gdbusmethodinvocation.h(46) : error C2143: syntax error : missing ';' before '*'
c:\gtk\include\glib-2.0\gio\gdbusmethodinvocation.h(46) : error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
c:\gtk\include\glib-2.0\gio\gdbusmethodinvocation.h(46) : error C2086: 'int GVariant' : redefinition
c:\gtk\include\glib-2.0\gio\gdbusconnection.h(170) : see declaration of 'GVariant'
c:\gtk\include\glib-2.0\gio\gdbusmethodinvocation.h(46) : error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
c:\gtk\include\glib-2.0\gio\gdbusmethodinvocation.h(50) : error C2061: syntax error : identifier 'GVariant'
c:\gtk\include\glib-2.0\gio\gdbusproxy.h(77) : error C2061: syntax error : identifier 'GVariant'
c:\gtk\include\glib-2.0\gio\gdbusproxy.h(82) : error C2061: syntax error : identifier 'GVariant'
c:\gtk\include\glib-2.0\gio\gdbusproxy.h(140) : error C2143: syntax error : missing ';' before '*'
c:\gtk\include\glib-2.0\gio\gdbusproxy.h(140) : error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
c:\gtk\include\glib-2.0\gio\gdbusproxy.h(140) : error C2086: 'int GVariant' : redefinition
c:\gtk\include\glib-2.0\gio\gdbusconnection.h(170) : see declaration of 'GVariant'
c:\gtk\include\glib-2.0\gio\gdbusproxy.h(141) : error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
c:\gtk\include\glib-2.0\gio\gdbusproxy.h(144) : error C2061: syntax error : identifier 'GVariant'
c:\gtk\include\glib-2.0\gio\gdbusproxy.h(148) : error C2061: syntax error : identifier 'GVariant'
c:\gtk\include\glib-2.0\gio\gdbusproxy.h(154) : error C2143: syntax error : missing ';' before '*'
c:\gtk\include\glib-2.0\gio\gdbusproxy.h(154) : error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
c:\gtk\include\glib-2.0\gio\gdbusproxy.h(154) : error C2086: 'int GVariant' : redefinition
c:\gtk\include\glib-2.0\gio\gdbusconnection.h(170) : see declaration of 'GVariant'
c:\gtk\include\glib-2.0\gio\gdbusproxy.h(156) : error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
c:\gtk\include\glib-2.0\gio\gdbusproxy.h(157) : error C2143: syntax error : missing ';' before '*'
c:\gtk\include\glib-2.0\gio\gdbusproxy.h(157) : error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
c:\gtk\include\glib-2.0\gio\gdbusproxy.h(157) : error C2086: 'int GVariant' : redefinition
c:\gtk\include\glib-2.0\gio\gdbusconnection.h(170) : see declaration of 'GVariant'
c:\gtk\include\glib-2.0\gio\gdbusproxy.h(159) : error C2061: syntax error : identifier 'GVariant'
c:\gtk\include\glib-2.0\gio\gdbusproxy.h(163) : error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
c:\gtk\include\glib-2.0\gio\gfileinfo.h(901) : error C2146: syntax error : missing ';' before identifier 'g_file_info_get_size'
c:\gtk\include\glib-2.0\gio\gfileinfo.h(901) : error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
c:\gtk\include\glib-2.0\gio\gfileinfo.h(901) : error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
c:\gtk\include\glib-2.0\gio\gfileinfo.h(930) : error C2061: syntax error : identifier 'goffset'
c:\gtk\include\glib-2.0\gio\gfileinputstream.h(64) : error C2059: syntax error : '*'
c:\gtk\include\glib-2.0\gio\gfileinputstream.h(64) : error C2091: function returns function
c:\gtk\include\glib-2.0\gio\gfileinputstream.h(64) : error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
c:\gtk\include\glib-2.0\gio\gfileinputstream.h(64) : warning C4183: 'goffset': missing return type; assumed to be a member function returning 'int'
c:\gtk\include\glib-2.0\gio\gfileinputstream.h(66) : error C2059: syntax error : '<L_TYPE_raw>'
c:\gtk\include\glib-2.0\gio\gfileinputstream.h(66) : error C2238: unexpected token(s) preceding ';'
c:\gtk\include\glib-2.0\gio\gfileiostream.h(64) : error C2059: syntax error : '*'
c:\gtk\include\glib-2.0\gio\gfileiostream.h(64) : error C2091: function returns function
c:\gtk\include\glib-2.0\gio\gfileiostream.h(64) : error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
c:\gtk\include\glib-2.0\gio\gfileiostream.h(64) : warning C4183: 'goffset': missing return type; assumed to be a member function returning 'int'
c:\gtk\include\glib-2.0\gio\gfileiostream.h(66) : error C2059: syntax error : '<L_TYPE_raw>'
c:\gtk\include\glib-2.0\gio\gfileiostream.h(66) : error C2238: unexpected token(s) preceding ';'
c:\gtk\include\glib-2.0\gio\gfileiostream.h(72) : error C2059: syntax error : '<L_TYPE_raw>'
c:\gtk\include\glib-2.0\gio\gfileiostream.h(72) : error C2238: unexpected token(s) preceding ';'
c:\gtk\include\glib-2.0\gio\gfileoutputstream.h(64) : error C2059: syntax error : '*'
c:\gtk\include\glib-2.0\gio\gfileoutputstream.h(64) : error C2091: function returns function
c:\gtk\include\glib-2.0\gio\gfileoutputstream.h(64) : error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
c:\gtk\include\glib-2.0\gio\gfileoutputstream.h(64) : warning C4183: 'goffset': missing return type; assumed to be a member function returning 'int'
c:\gtk\include\glib-2.0\gio\gfileoutputstream.h(66) : error C2059: syntax error : '<L_TYPE_raw>'
c:\gtk\include\glib-2.0\gio\gfileoutputstream.h(66) : error C2238: unexpected token(s) preceding ';'
c:\gtk\include\glib-2.0\gio\gfileoutputstream.h(72) : error C2059: syntax error : '<L_TYPE_raw>'
c:\gtk\include\glib-2.0\gio\gfileoutputstream.h(72) : error C2238: unexpected token(s) preceding ';'
c:\gtk\include\glib-2.0\gio\gseekable.h(63) : error C2059: syntax error : '*'
c:\gtk\include\glib-2.0\gio\gseekable.h(63) : error C2091: function returns function
c:\gtk\include\glib-2.0\gio\gseekable.h(63) : error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
c:\gtk\include\glib-2.0\gio\gseekable.h(63) : warning C4183: 'goffset': missing return type; assumed to be a member function returning 'int'
c:\gtk\include\glib-2.0\gio\gseekable.h(66) : error C2059: syntax error : '<L_TYPE_raw>'
c:\gtk\include\glib-2.0\gio\gseekable.h(66) : error C2238: unexpected token(s) preceding ';'
c:\gtk\include\glib-2.0\gio\gseekable.h(73) : error C2059: syntax error : '<L_TYPE_raw>'
c:\gtk\include\glib-2.0\gio\gseekable.h(73) : error C2238: unexpected token(s) preceding ';'
c:\gtk\include\glib-2.0\gio\gseekable.h(83) : error C2146: syntax error : missing ';' before identifier 'g_seekable_tell'
c:\gtk\include\glib-2.0\gio\gseekable.h(83) : error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
c:\gtk\include\glib-2.0\gio\gseekable.h(83) : error C2086: 'int goffset' : redefinition
c:\gtk\include\glib-2.0\gio\gfileinfo.h(901) : see declaration of 'goffset'
c:\gtk\include\glib-2.0\gio\gseekable.h(83) : error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
c:\gtk\include\glib-2.0\gio\gseekable.h(86) : error C2061: syntax error : identifier 'goffset'
c:\gtk\include\glib-2.0\gio\gseekable.h(92) : error C2061: syntax error : identifier 'goffset'
c:\gtk\include\glib-2.0\gio\gsettings.h(87) : error C2061: syntax error : identifier 'GVariant'
c:\gtk\include\glib-2.0\gio\gsettings.h(88) : error C2143: syntax error : missing ';' before '*'
c:\gtk\include\glib-2.0\gio\gsettings.h(88) : error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
c:\gtk\include\glib-2.0\gio\gsettings.h(88) : error C2086: 'int GVariant' : redefinition
c:\gtk\include\glib-2.0\gio\gdbusconnection.h(170) : see declaration of 'GVariant'
c:\gtk\include\glib-2.0\gio\gsettings.h(89) : error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
c:\gtk\include\glib-2.0\gio\gsettings.h(160) : error C2143: syntax error : missing ';' before '*'
c:\gtk\include\glib-2.0\gio\gsettings.h(160) : error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
c:\gtk\include\glib-2.0\gio\gsettings.h(160) : error C2378: 'GVariant' : redefinition; symbol cannot be overloaded with a typedef
c:\gtk\include\glib-2.0\gio\gdbusconnection.h(170) : see declaration of 'GVariant'
c:\gtk\include\glib-2.0\gio\gsettings.h(161) : error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
c:\gtk\include\glib-2.0\gio\gsettings.h(161) : error C2143: syntax error : missing ',' before '*'
c:\gtk\include\glib-2.0\gio\gsettings.h(162) : error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
c:\gtk\include\glib-2.0\gio\gsettings.h(176) : error C2061: syntax error : identifier 'GVariant'
c:\gtk\include\glib-2.0\gio\gsettings.h(197) : error C2065: 'value' : undeclared identifier
c:\gtk\include\glib-2.0\gio\gsettings.h(198) : error C2065: 'result' : undeclared identifier
c:\gtk\include\glib-2.0\gio\gsettings.h(198) : error C2275: 'gpointer' : illegal use of this type as an _expression_
c:\gtk\include\glib-2.0\glib\gtypes.h(72) : see declaration of 'gpointer'
c:\gtk\include\glib-2.0\gio\gsettings.h(199) : error C2275: 'gpointer' : illegal use of this type as an _expression_
c:\gtk\include\glib-2.0\glib\gtypes.h(72) : see declaration of 'gpointer'
c:\gtk\include\glib-2.0\gio\gsettings.h(199) : error C2146: syntax error : missing ')' before identifier 'user_data'
c:\gtk\include\glib-2.0\gio\gsettings.h(199) : error C2513: 'gboolean *' : no variable declared before '='
c:\gtk\include\glib-2.0\gio\gsettings.h(199) : error C2059: syntax error : ')'
c:\gtk\include\glib-2.0\gio\gsettings.h(240) : error C2061: syntax error : identifier 'GSettingsBindSetMapping'
c:\documents and settings\administrator\my documents\visual studio 2008\projects\gladetest\gladetest\main.cpp(12) : error C2065: 'GtkBuilder' : undeclared identifier
c:\documents and settings\administrator\my documents\visual studio 2008\projects\gladetest\gladetest\main.cpp(12) : error C2065: 'builder' : undeclared identifier
c:\documents and settings\administrator\my documents\visual studio 2008\projects\gladetest\gladetest\main.cpp(17) : error C2065: 'builder' : undeclared identifier
c:\documents and settings\administrator\my documents\visual studio 2008\projects\gladetest\gladetest\main.cpp(17) : error C3861: 'gtk_builder_new': identifier not found
c:\documents and settings\administrator\my documents\visual studio 2008\projects\gladetest\gladetest\main.cpp(18) : error C2065: 'builder' : undeclared identifier
c:\documents and settings\administrator\my documents\visual studio 2008\projects\gladetest\gladetest\main.cpp(18) : error C3861: 'gtk_builder_add_from_file': identifier not found
c:\documents and settings\administrator\my documents\visual studio 2008\projects\gladetest\gladetest\main.cpp(19) : error C2065: 'builder' : undeclared identifier
c:\documents and settings\administrator\my documents\visual studio 2008\projects\gladetest\gladetest\main.cpp(19) : error C3861: 'gtk_builder_get_object': identifier not found
c:\documents and settings\administrator\my documents\visual studio 2008\projects\gladetest\gladetest\main.cpp(20) : error C2065: 'builder' : undeclared identifier
c:\documents and settings\administrator\my documents\visual studio 2008\projects\gladetest\gladetest\main.cpp(20) : error C3861: 'gtk_builder_connect_signals': identifier not found
c:\documents and settings\administrator\my documents\visual studio 2008\projects\gladetest\gladetest\main.cpp(22) : error C2065: 'builder' : undeclared identifier
Build log was saved at "file://c:\Documents and Settings\Administrator\My Documents\Visual Studio 2008\Projects\gladetest\gladetest\Debug\BuildLog.htm"
gladetest - 129 error(s), 4 warning(s)
========== Build: 0 succeeded, 1 failed, 0 up-to-date, 0 skipped ==========
Something seems wrong with the gio.lib ... but what?? and WHY????