Twice today I've had my computer tell me it didn't shut down properly. Both times though everything was still on. I would go to wake it from sleep and it would go straight to restarting then telling me it didn't shut down properly. It's a machine I built myself last weekend with W7. I've had Vista up until now so I'm not quite up to speed on all of 7's in's and out's. Any ideas as to what's going on?