My macbook hard drive crashed, luckily I had just backed up everything. I went and bought a new 320 GB hard drive, I researched and I know it's compatible with my Macbook. I decided to install windows 7 on it first, but the windows 7 installer wouldn't recognize my hard drive. (For the record, my Matsushita superdrive will not read DVDs anymore, only CDs, so I created bootable copies of both my Mac OS X install disk and my Windows 7 install disk, and I've been using a bootable rEFIt CD to boot from my USB flash drive.) So I booted up the Mac OS X Snow Leopard disk and started disk utility - it recognizes the rEFIt CD, it recognizes the flash drive, but no internal hard drive. The partitioning tool in rEFIt doesn't recognize it either, but I know it's seated correctly because I can hear/feel it booting up with the computer (if i remove the battery and boot with the computer plugged in). I also know it works correctly because I installed it in my girlfriends PC and it recognized it just fine, I even installed Windows 7 on it, hoping the macbook would boot from it. So now I'm stuck. Any ideas would be great.