Gnome

Haia I'm using SuSE 9.0 and KDE. I want to try Gnome and at the Log-in screen I tick "Gnome" but no Gnome comes up. The KDE splash screen appears. (AFAICT I have installed all the relevant Gnome files from the disk). Anybody an idea how I can fix this or what to check? Thanks -- Greetings from /bill at 169 west , 19 south. Disclaimer: Any errors in spelling, tact, or fact are transmission errors."