accelerometer doesn't work randomly

[Android_man]

I started a game that needs accelerometer in order to work properly. And it didn't work, the accelerometer was sort of disabled. When I rebooted it worked fine. Why did that happen? How to fix?
I am using Gingerbread

 

[sitlet]

If you rebooted and it worked, it's likely a bug in the software. If it comes back again, you may need to do a factory reset to clear the issues up.

 

[John Redcorn]

I used to have a game that caused the accelerometer to stop working almost every time after you were done playing it until a reboot. Then I found that just turning auto-rotate off then back on when finished with the game would re-enable it for everything.