Originally Posted by CamoAnimal
Not trying to be a jerk towards all KDE users out there, but this is the reason I switched from KDE to Gnome... STABILITY!!!
Read the first post again and don't troll please.
The original poster is having problems with the gtk+ dialogs, kde applications work fine.
As for the topic at hand: if running from the command line doesn't give any useful info, try to run the program with strace. The simpler the output is the easier it will be to find the problem, so I suggest using strace to run a simple gtk+ program that crashes. The output for "strace firefox" will probably be much longer than the output for gedit or the like.