Over the last couple of weeks I have been noticing a problem. I leave my G5 on all the time and access it from my ibooks. A few times I have awoken in the morning to find the G5 locked up with all the fans going. This used to happen about once a month. Now it is sometimes twice a week. It might be a coincidence but it seems to be more frequent since the 2 Firmware upgrades. Anyone else see this or know of a cause? G5 SP1.6 256M OS X 10.3.5 Steve Drive carefully. It's not only cars that can be recalled by their maker.