I recently got this mbp off a buddy of mine who lost his restore DVD. Luckily for me I have a retail install DVD here. I tried to do a fresh install but the boot up disc just hangs at the grey screen with the apple logo. The DVD just stops spinning. I shut down and tried it again, and eventually different install methods from holding option, c, install through the OS with no luck. I even made an image and load the sucker up on a USB drive to no avail. The DVD, SuperDrive are all fine, I've installed this same DVD on other, older MacBooks. Is it safe to assume that I need an updated (perhaps 10.6.3) install DVD? If so would borrowing the restore DVD from another similar mbp i7/i5 owner work on my machine? It'd be nice to know before I spend the money on another disc. Thanks!