Hey. I have a 1GHz Aluminum PB that I just upgraded to Leopard, and it's not starting up properly. The DVD-ROM drive is busted, so I installed Leopard to it as a target disk through my desktop. When I go to System Preferences on my desktop and choose startup disk, it allows me to use my PB's hard drive, shows the proper software version number, and starts up perfectly well. However, with my PB disconnected, starting up on its own, I get the question mark folder, showing no system drive. I have reset the PRAM, pressed C at startup to choose my startup disk, and pressed Option at startup to determine whether there is any valid system disk. Pressing Option gives me only the retry arrow (circular) and the right arrow, but does not show my system drive. I have run disk utility on my PB's drive and it is working fine. Any ideas about what I can try next? Thanks!