GTK+ crashing on application startup - WinXP

[Martin Štefan <ufan seznam cz>]

Hello there,

   when starting an application using GTK+ (pidgin in my case), I'm 
getting following error message>

Gdk-ERROR **: _gdk_visual_init: unsupported BITSPIXEL: 0

When I click 'ok', standard MS Visual C++ Runtime error message is 
displayed about pidgin being terminated. The GTK+ version I got  is 
'GTK+ Runtime 2.12.8 rev a' and it's installed together with pidgin. I 
tried to reinstall it, manually clean the folder and registry keys and 
also manually update the binaries, but no success. I got info from 
pidgin support maillist, that it's related to display setting or graphic 
drivers, but I have not changed them recently.

I will appreciate any ideas.

Thanks,
Martin Stefan