Hello guys/gals was wondering if anyone has a idea as to what this could be. I just replaced the screen bezel on this computer since it was cracked on both sides. Which is probably what caused this problem however I'm not 100% sure. Whilst replacing the bezel I also installed a dual-drive which takes place of the optical drive and allows for a 2nd hd to be used. My guess is that it may be a power drain issue. The 2nd HD could be running using up more power? However I'm not sure it makes sense somewhat as the optical drive is not running the entire time the system one if you pop a dvd or cd in while a HD is. Anyhow here are some screen captures of what is happening. The problem seems to kick in periodically I've been using the computer all day today and so far it has only happened once usually bringing up the dashboard or minimizing the window to the dock then bringing it back up fixes the problem. Also its not localized to a certain spot the entire screen gets like that. The both times it has happened yesterday and today the computer was running pretty hot both fans were on at 5500+rpm so seems as though heat may also have something to do with it.