White screen after login

[Caleb Burns]

I have a problem. I am using Fedora 9 with GNOME. I wanted to try KDE so I downloaded KDE using 'yum groupinstall "KDE (K Destop Environment)"'. After all of the download and installation was complete I logged out and went to re-login under my user. However, now only a white screen will appear after I try logging in. Does anyone have a suggestion as to how to fix this problem? Thanks.

NOTE: The root user works perfectly fine, it just seems to be the normal user I use that's messed up.

[Caleb Burns]

I figured out what was causing it. For some odd reason when Desktop Effects were enabled the screen would go a black white colour.