suse 9 and Dell laptop

Evening all I'm having a problem getting the graphics working on a dell latitude cpx laptop. I had the laptop setup as 1024x768 display no problems with suse 8 but since I tried to install 9 today as a fresh install, except /home, no matter what setting I try I cannot get the display right using sax2. Whatever I set it to the screen goes blank then gradually gets filled with white. I've tried install about 3 or 4 times now and I don't know what to try next. Nny help would be appreciated. Cheers Matt