11-24-2009, 06:25 PM
I experience the same sort of video issues in WoW on my 24" white iMac. My research indicates that the issue is due to updated video drivers that were introduced with one of the later revisions to Leopard; the WoW Mac support forum has a couple of long threads about this issue. My experience supports this, as I did not have the problem with earlier revisions of Leopard. I plan to install Snow Leopard on the iMac over the holiday weekend; I'd hoped that might solve the problem, but Jerry's post indicates it probably won't.