Has anyone else had problems with the display on this model? Here is a video of the problem. The screen will suddenly go all white/gray like you see in the video. This doesn't affect an external display. Connecting or disconnecting an external display while it's happening resolves the issue (temporarily). It happens randomly, so I have no way of reproducing the issue. Samsung recommends I let a service technician look at it, of course. Being that it happens randomly, they'd probably not see it and tell me everything is fine. Not to mention it's out of warranty and I'm low on cash. Just a shot in the dark that someone here might have a thought. Thanks in advance for reading.