I'm involved with yet another centipede restoration, and i've ran into an odd problem. The machine plays fine after turned on, but after it sits for a few hours it freezes up and the screen goes yellow with maybe a couple of red mushrooms. Restarting machine/reset has no effect..putting in test mode just gives constant beeping. I was initially thinking the machine was overheating, but this problem remains after letting it sit overnight. This has happened a couple of times and resolves itself days later it seems. Any ideas?