Default background about Gtk2::Textview on different computer

[唐瑞博 <ruibotang gmail com>]

hi, all

I used a Gtk2::TextView widget in my GUI, but the default background of the textview is black on my workstation, i have used $wiget->modify_base to change the color to white, but fails, the background still white.  But when i use $widget->modify_text to change the text color, it success.

when i run the same programe on another computer, the default background of the textview is white, which is what i want.

the OS of the two computer are both SUN Solaris 10, my workstation is SPARC, another PC is X86. I wonderder why the same programe can have different background on two similar OS, is there default setting can affect the background?   or what can i do the change the background to white on my workstation?

Thanks!!

Ruibo