Thanks to everyone who answered. This is my message from the owner today "This one looks like hardware. I put my HD sled into the problematic machine with various working systems, no luck. Then put the other("broken") HD sled into my G4..It ran. Repartitioned it after BU and put a clean shiny new Jag up to 10.2.3. Beautiful on my machine. Dead meat on bullet. Couple of more diagnostics with VOM and it's off to the shop. I hope it's under warranty, and I'm glad it's not my machine." I'm glad it's not my machine either. :) Melinda ===== Of course, that's just my opinion. I could be wrong...but I doubt it __________________________________________________ Do you Yahoo!? Yahoo! Mail Plus - Powerful. Affordable. Sign up now. http://mailplus.yahoo.com