[allan87]

OK. I will test 1230. It is intermittent, so testing may not be 100% reliable, but it seems to happen once or twice during a feature length film.

A debug enabled log may be illuminating. I wonder if you getting a spurious button press from somewhere?
Do you have a mouse, or other input devices connected?

If the 1230 test is uneventful, I will update to a current build and run a movie with debug on.