How to switch KDE environment to Gnome?

I’ve installed and used SUSE 11.2 with KDE environment. In generally, I’ve completely satisfied with it. However I want to change KDE into Gnome without re-install SUSE. Anyone who knows the solution, please show the answer. Thanks so much!

tchauthong@yahoo.com

YaST>Software management>View>Patterns

Install both Gnome patterns.

When you next log in, go down to the left and select the Gnome desktop before you log in. You will always to logged in to the last desktop you used; so you only need to change this setting when you wish to swap to the other desktop.