I have an Eightball deluxe that is being a bit of a problem child. The game will turn on, the and the GI comes up, but the game doesn't seem to want to boot, so you can't start a game or run any tests. I had an issue like this before and I ended up having to tighten the vertical fuse holder by the power transformer. Tried that again a few times, but not luck. It has all-tech boards in it as well. Anyone have any ideas?