HurlyBurly

I recently received a second-hand Toshiba SD-3900... I was going through the Setup menu adjusting the player for my television and accidentally activated Progressive Scan. The screen went black and while the audio seems to work fine, I get no picture.

There's a "Progressive" button on the remote, but it doesn't seem to do anything.

Does anyone know how to either restart the player or turn it off?

Any help is greatly appreciated.