Advertisements Odd behavior here: 64-bit Vista Premium system w/Tivo Desktop Plus installed. I can play .tivo files from inside TDT+, or from WMP with no problems. BUT when I try to play them from Media Center, I get a screen with just the desktop flanked by the black bars on either side, and no action. When I hit "play" I get a message "cannot play this file" These files work fine on my 32-bit system so I know they aren't corrupt. They also work fine in WMP or Tivo Desktop on the 64-bit machine, so I figure I must have the right codec in there. Anyone have any ideas?