I bought a refurb Macbook Pro three weeks ago. Almost every time I put it to sleep and wake it back up, there are strange wrinkle/shadow patterns tiling across the screen like this - http://img234.imageshack.us/img234/9265/patternaq5.jpg I spoke with an Apple rep on the phone who walked me thru some resets, but nothing changed. She gave me the number of a guy who lives an hour from me who's a official Apple repairman. But I'm about to leave the country for a month and can't meet him. Any ideas how to diagnose this?