Bought a Tibook (A1025 1GHz) last week that I'm having issues with. I reckon the PRAM battery is shot cause its takes ages to power up and always loses the time. It ran fine, albeit a bit jerky, on my test run. Brought it home and yanked the drive. Threw in a known good one, some good ram and fired it up. Wont install anything. Tried everything from OSX beta to 10.5 to Linux. Haven't tried installing OS9 since none of my discs work, apparently needs some recovery discs that is about as easy to find as a bloody unicorn. Four things happen. It boots fine and then freezes on OS installation. It throws en error on OS installation. It refuses to boot altogether, loading circle on boot freezes or if i put in the stock drive, it boots to tiger and then freezes completely. I know the ram is good, I know the drives are good and i can rule out corruption from a dodgy ODD since I even tried target disk mode. Nada. Hardware test comes back fine. And the best part is that if it boot off my AluBook's drive via firewire, the bloody thing runs like a dream. I'm stumped. I admit that I haven't worked with macs for very long, but I'm out of ideas. I ordered a new cable for the HDD off ebay, but the symptoms are more similar to the dodgy southbridge issue on older Thinkpads. Reckon its the board.