We have a Blue and White G3 that seems to function perfectly with Mac OS 8.5 loaded, but when installing Mac OS 9.2.1 from a G4 PowerMac install disk the G3 starts having trouble finding the Startup disk. Sometimes the Installer crashes turning the install off 9.2 as well. If you can install and startup from the disk then it often crashes even after just opening the hard drive icon. We tried wiping (zeroing all data) the drive multiple times in addition to swapping in other ram. the crashes seem to mimic a hardware problem but the odd thing is everything behaves properly when OS 8.5 is installed. Its like the poor thing is allergic to 9! Anyone know what might be going on with this poor old thing.