I picked up an old iMac (summer 2001) model G3 earlier today. It was running Jaguar on the original 20GB hard disk. I swapped in a larger HD, which had a installation of Panther already on it. Booted up and everything seems A-OK, except that the CPU is being reported as 400 MHz in the System Profiler. I'm positive that it (accurately) said 500 MHz when the old Jaguar drive was in there. Anyone have any suggestions or thoughts?