Compiz With Radeon Xpress Card

Hi,

 New to Linux, so please excuse the ignorance.  I am trying hard to learn.  I just have a question regarding Compiz-Fusion.  Everytime I enable desktop effects, my screen turns white and I have to shut down and restart my computer.  I thought I followed all directions properly but cant seem to get Compiz working.  If someone could guide me through the process, it would be very much appreciated.  Thanks  

BTW - this is for OpenSuse 11.