For the last few weeks I have been noticing that at times I get lines of scrambled pixels. This is happening in individual apps and on my desktop. Only way to get rid of them is to quit the app or restart. lower left: lower right: close up: I don't have a screenshot of it happening on an app window, but it looks the same as above. 17" MBP 2.16 GHz CD 2 GB RAM running 10.5.2 What could be going on?