Gnome on SuSE 9.1

Hi, I'm using SuSE 9.1 and I've downloaded gnome 2.10 from www.gnome.orghttp://www.gnome.organd built gnome from sources and installed them to /opt/gnome. But when i run gnome, my applications are getting screwed up. some of them are crashing. I reported this to gnome guys, but they said its not gnome problem. I've tried this before on redhat and every thing was fine. But SuSE its not the case. Do i need to run some config files before switching to gnome. (or for that matter new kde also). Please help me out. Thanks, Surya