I recently upgraded from 2009-10 Student Edition to 2011-12 Student Edition and anytime I draw practically any type of shape, the faces and surfaces are oddly incomplete. It looks a bit like zebra stripe but much more random. I can actually see through the solids via the gaps in the surfaces. I've tried adjusting a number of settings  both in SolidWorks and on my computer (3 gb RAM), but no luck. I brought my laptop to school to see if my CAD instructor could help, but he was stumped too. I will try to load a screenshot this evening when I am home.

Any help would be greatly appreciated...nearly impossible to use this way.

Jeff