I've been having a problem recently when opening Windows Media and Quicktime files and my computer locking up/crashing. Actually, it also happens at times when trying to view a jpeg. What happens is that my computer will change to a very low resolution and lock up. I have to restart with the power button to get things back to normal. It does not happen every time I open one of these files though. It was happening with some videos downloaded so I thought it was a corrupt file but lately I have had it happen to my own jpeg pics that I have taken as well as Windows Media movies I have create