Recently I started having problems with Media Player Classic Homecinema. As far as I know, I didn't install any updates (or any new software actually). Also, I'm using default Windows 7 RC codecs; I didn't need to install any codec packs.
What happens is that when MPC is started, it opens fullscreen on secondary monitor. I guess that it opens some sort of error dialog, but I can't read it because MPC window is open above it. When I dismiss dialog (ESC or Enter) the movie starts to play, however no MPC GUI elements show (though I can click on them). When focus is moved to another app, MPC window resizes and becomes unresponsive. During the process, some window elements in other programs become garbled (but refreshing the window fixes that).
This happens on different video types (avi, wmv, flv) and affects both 32bit and 64bit MPC versions. At the same time, Windows Media Player works flawlessly.
I reinstalled MPC and replaced it with a newer version, with no effect whatsoever.
The only thing I can think of is to reinstall codecs, but how do you do that in Windows 7? Any ideas are welcome.
P.S. I'm not interested in other players.