I use MinGW on windows, and the GTK install for development is the latest stable release I found.
GtkAboutDialog works fine for me...
I found some of the older installs gave me some of these type of errors,
so I did a upgrade on my win32 boxes ...
Have a look see at: http://sourceforge.net/project/showfile ... p_id=98754
This is the install I downloaded:
(I also try to keep my glades between OS's the same version...)
I develop in Linux Fedora 8 / Windows XP / Windows 200x and my code ports correctly between them.
I have not yet tried it in VC build environment...