My firewire drive causes a fatal loop (I get a message to restart, then after I restart, I get the same message to restart) to occur when it's turned on after I upgraded to Tiger OS. Also my printer won't work anymore. These peripherals were connected during the upgrade attempt. There wasn't any obvious warning about disconnecting these items before installation of the new OS. I understand this could have caused some damage to the devices. I've repaired permissions on my boot drive and I've reinstalled my printer software, but nothing has worked.