Tony, Carol's laptop does the exact same thing. Happens at least once a day. I have Windows 7 in my desktop PC and no problems. There is a repair feature in the program that allows you to essentially reinstall windows 7 without destroying all your files. I've never used it, though, but it may solve the problem.

Gary cool
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PSR-S950, TC Helicon Harmony-M, Digitech VR, Samson Q7, Sennheiser E855, Custom Console, and lots of other silly stuff!

K+E=W (Knowledge Plus Experience = Wisdom.)