I have experienced the cursor "shutting off" after several seconds. Typing anywhere not possible - email, word processing, etc. To reactivate, the mouse had to be left-clicked. This began in late May or early June, 2012.
After trying literally everything to resolve, I performed a total system restore back to when the laptop was new. Problem solved.
Obviously, a Windows 7 update has a serious glitch.
I am now getting requests to allow updates and am denying them. How do I keep updates from automatically occuring? I plan to deny updates until I can get Windows 8.