Help: weird black boxes

Hello. I'm having a problem. Recently black boxes have been showing up in my OS. It seems that they are being drawn around the most active part in the current application. I've attached a couple screenshots. Any advice is much appreciated. Thanks,

Dave

oops

Sorry about that, apparently this problem has been discussed many times. I should have done a forum search before I posted, but I'd already done a Google search with no relevant results so I assumed it wasn't a very prevalent problem; sometimes Google's scope is just too big.

Dave

Hey Dave, this has been discussed a few times before. Just look at the bottom of this thread, the Similar Threads section.

http://www.mac-forums.com/forums/showthread.php?t=57398

http://www.mac-forums.com/forums/showthread.php?t=55239

http://www.mac-forums.com/forums/showthread.php?t=46960

Just a few links from that list.


Edited to add:

Yep, it has. We posted at the same time. ;D