What brand monitor do you have?
Sometimes the monitor can not handle svga (3d and high
color graphics). CLIM works as it should though. So
maybe it is the monitor that's at fault.
Maybe you can search for your monitors compatibility
with XFree86 on the internet.

__________________________________________________
Do You Yahoo!?
Tired of spam?  Yahoo! Mail has the best spam protection around 
http://mail.yahoo.com