Ubungu : Gnome not working with KDE 4
I had Ubuntu 7.10 installed with Gnome. I installed KDE4 after that. Now, whenever I select Gnome as the session in session manager while logging in, the system starts, a white screen appears in the top left corner and nothing happens. I cannot log in to gnome, but can log in to KDE4 as well as KDE 3.5. Any ideas on what I can do to get back gnome?