Problem with SuSE 8.2 Pro Install

I'm Having a problem installing SUSE 8.2 pro.. It all install but when the X server starts it come up to a blank screen and the monitor goes into standby mode. Any thoughts on were to look for the problem? I tried bringing up the YaST2 from run level 3 but it would not let me change anything.. YaST has my monitor listed a VESA when in fact it is an SVGA to that may be the problem, but how do I change it? Thanks for any help Dave .