OK, I'm stoked with my new macbook. Honestly, I use it for the basic stuff: word processing, email, 'net and watching movies. I'm having one slight problem. I'm getting an odd effect watching quicktimes videos.

Namely, there is a strobe light or flickering effect with all quicktime videos I watch. However, the effect goes away once I go into full screen mode. Weird. Is this a known issue? I've done all software updates. This effect is visible with all quicktime videos, new and old. Thanks in advance!