On 30 May, 2006, at 6:33:13, cerebus DaPope wrote: > put in an os9 disk and turned it on pressing "c" > before i had a hard drive my cinema desplay would show a folder > with a question mark > now its just black > > if i reboot, i get an image for a second > then blackness > > i'm sure its waiting for me to do something > what should i be doing? It is possible that your hard drive identification bridge (a little plastic piece with a metal center) is on the wrong set of identifying pins. The bridge should be on the "Master" set of pins if it is the only hard drive that is installed in the machine. Many drives have printed identifying marks on the circuit board surface. For example, the letters "CS" and the words "Master" and "Slave". Sometimes a Mac will refuse to see a hard drive if it is set to be "Cable Select" instead of "Master" or "Slave". This could be your problem, although I would have expected that you would still have been seeing the folder with the question mark when the drive was not recognized because of any identification mix-up. This is the normal way that Macs tell us they do not have an active operating system installed on their drive or that they cannot recognize the drive.