Manual Media Center Resolution Changes

I had changed my Media Center resolution to a setting it didn't like, thereby
generating a black screen whenever Media Center would start. Since the
screen was black, there was no way for me to go back into Tools and change
it. Some people suggest using PowerStrip to force resolution changes, but I
wanted to find out where the resolution changes where stored.

Go into regedit. Drill down to
HKEY_LOCAL_MACHINE/Software/Microsoft/Windows/CurrentVersion/Media
Center/Settings/DisplayService/

There is a PhysicalHeight and PhysicalWidth Reg_DWORD that will show you
your resolution. Edit this to the desired resolution. For instance, 300 is
768, 400 is 1024, 500 is 1280, etc.

That fixed me right up. Hope it does you too.