Holding "C" or "D" key don't work -- just keep getting the flashing folder with question mark. Hard drive is new, partioned and verified with OSX 10.4.11 (Tiger). This was done using install disk in the optical drive in target mode using a MacBook. Both CD and Hard drive access fine using the MacBook. Tried SMC reset, PRAM/VRAM resets, "option" key, and even tried going into open firmware and shell - nothing. Will not see either drive, will not open shell or firmware. Just "?" "?" "?" "?" etc. Any ideas what the problem can be?