ATI Radeon 9100 problem

[Psyk[o]]

Hi, i've installed the latest cvs version of the server, but I'm able to
run only the Xvesa server.
If i run Xati i have to restart my machine.
Anyone know what is the problem? My video card is still unsupported?
I've tried to use Xfbdev but if i run this i have a message that told me
that /dev/fb0 does not exist...

Xvesa works fine, but i've a monitor refresh rate at Horizontal:48 and
vertical:59, how can i turn it up? (ex V:80) ?