Currently Being ModeratedJul 22, 2011 11:29 PM (in response to Charles Conway)
Exactly same here. And some users on Twitter are complaing the same issus. (Mainly using 2010 mid MBP with a nVidia Geforce 330M graphics)
I've already submitted a bug reporter to Apple since Lion was still in GM release, here is the Bug Reporter ID:
Problem ID: 9720864
Hope Apple will fix it ASAP.