Installation shutdown my PC !

[Morda Jean-Jacques]

Hello...

I have a shuttle SB62G2 with a SAPHIRE RADEON 9800 pro in it...

in graphical mode (X), at the vrey beginning of installation in grpahical 
mode, my pc is freezing...

if i install in text mode, all is ok, and at the restart, when X starts, my 
mouse is moving during 4 or 5 seconds and the it freeze... i'll have to 
shutdown my pc.

what on hell ??? ... :'-(

(same bug on FC1 with in bonus POWER DOWN in the installation process...)

Thanks.