I've had a recent problem with my High Speed that makes it unplayable.
During a game I was playing, the score display went blank but the GI stayed on, and the entire game went dead, but the sound effects were still working; it just continued with the music track.
I turned the game off and back on, all of the displays read zeros and you could hear random sound effects, and it doesn't respond when you try to start a game.
I haven't read of this happening in another System 11 and I haven't the slightest idea where to start looking for a problem. Any ideas?