Here is a Ctrl+Alt+Shift+Break Freeze Report
http://www.mediafire.com/?3tcf239j4hhqa4t
Win7 SP1 x64
ATI 5750 1GB
MPC-HC
Trigger: Loading the next file in a playlist when in fullscreen exclusive mode
Symptoms: The frame from when you entered fullscreen exclusive mode with the first file flashes on screen when MPC-HC tries to load the second file. Occasionally results in black screen afterwards, with madVR and MPC-HC completely hung in Fullscreen Exclusive Mode.
Cause: As far as I can tell... After copy to backbuffer = Flush & Wait (loop) + Fullscreen Exclusive Mode + Windows 7 + ATI GPU.
More details in readme.txt