x,y geometry!?

Is there anyone out there who *knows* what the x,y geometry of a notebook's LCD screen might be?? I am attempting to set the correct figures but still don't have it quite right: 320x200 is close, but... :-\ ...I'm weary of killing the x-server on the off-chance that I *finally* have it RIGHT! -- ..."Yogi" CH Namast Yoga Studio