I just came off another 788 flight, and the monitor started behaving erratically when I was browsing the music albums. Note that it was in "full touch screen mode". It finally stopped working when I selected an album (perhaps the songs it contained are so bad that the system refuses to play it? ) and the screen crashed.

It restarted itself and went into the normal mode, when the remote control is still in "remote control mode/full touch screen", so I wasn't able to use the screen at all