I'm having a problem that I can't figure out. Thursday my Macbook locked up and despite my best efforts I couldn't kill the task or get it to recover so I just powered it down. When I went to boot it up again, it just hung at the gray apple screen. Based off suggestions, I booted into single user mode and ran an fsck. Each time it came back with the drive could not be repaired. I was surprised that I hadn't noticed any critical errors prior to this, but I figured it happens. Saturday I went out and bought a new Intel X25-M SSD, which is an upgrade from the old Seagate 320GB 7200 hard drive I was using. First try, it wouldn't detect the hard drive, even in disk utility. Downloaded the firmware tools from Intel and it wouldn't detect the hard drive there either. Figured I was having some serious bad luck, so I took it back and go another. Same thing. So I decided I was going to try a Western Digital 320GB hard drive I had from an old Playstation 3. No luck. It is powering them, as I can feel the WD spinning, but it's not seeing them in disk utility at all. If I put the old Seagate Hard drive in, it will see that, but I'm determined to get this SSD in there now. Any thoughts on what the problem could be?