I had a problem on my MK1 with the 12c consumer player installed.

I was fiddling about with the buttons on the facia, and all of a sudden, they stopped responding, though the remote worked. While trying to replicate the problem again, in which this did happen (like 1 hour later), both the facia buttons and the remote stoped working, but the MK1 continued to play fine, all-though it was not human controlable. As expected, just a simple pull of the power for 20 seconds or so fixed it, though now since then I havn't managed to replicate the problem again.

Proud owner of #161