Actually, it is a problem with the Power Management Unit (PMU) needing to be reset. The PMU is really a separate computer within itself. When it gets corrupted or out of sync, it causes problems with normal operation. One thing to remember, that is the PMU is corrupted, it will cause the PRAM battery to lose its charge within 3 days time, instead of 5-7 years.

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Ah, yes, the old CUDA dance. I have only ever needed this on old world boxes, either because it was given to me "dead" or I had fumbled around with Open Firmware issues which were over my head. Probably came up from too many freezes and power cycling.

In my MDD G4, the PMU Reset switch is not near the battery, but rather on the corner near the IDE connectors.

THANK YOU SO MUCH for reminding me about this! I was having too many problems with this thing at the same time and started to panic.