Is it possible to run one drive, and it would be in the optical bay? I think there is something wrong with my SATA controller where my OEM HDD is. I thought the drive died, so I put in a Crucial M4. Sometimes it was seen, other times not - I'd get the folder with the "?". I've reset the PRAM At one point it was seen and I was able to install the OS on it but any task took forever. For instance, it would take a couple of minutes for system info to show. It would beach ball. I could see the drive had the latest firmware - 040H. But the system was unusable. Then I took it out, and put the OEM drive in it again - it booted, but it too was beach balling. Then it was not seen upon reboot. I went back and for several times with both drives. Now I do know my DVD drive works. I could get a kit and install the drive (either one) there, but it would have to be the only drive as the other would be empty. Also, I could then test the drives in the Optibay. If they are fine, then I know it's that first SATA spot (or cable). So my question is can this be done? THANKS!