I've bought another 60GB PS3. It's not booting to the XMB and only shows a black screen on boot. Safe mode works, displays properly but gives an error with every option along the lines of "cannot access the system storage". I've tried a hard drive I took out from another PS3 with the same result (although I can't guarantee that ones working either as I haven't tested it). Any suggestions where to go from here as I'm lost after replacing the hard drive?