Hello- Forgive the longish description below. I'm just trying to figure out what is defective here. Is the SSD bad? Is the machine bad? Is this the problem with the 2011's overheating? Is there something I should have done when I configured the SSD? - Just bought a 15" MacBook Pro, and got an OWC Mercury Extreme Pro 120GB drive to go in the optical bay spot. I have to say the bracket OWC sells is vastly superior to the OptiBay part, and to the cheap asian parts. Since I was buying the drive anyway from them, I got the bracket as well and I think it cost me $50 for the bracket rather than $75 in a package deal. Anyway, installation went fine. It was nice to see that Apple has upgraded the internal fit and finish. For instance, they now use a nylon cloth to hold cables in place rather than tape. Cloned the boot drive onto the SSD, installed warcraft and decided to see just how things would perform. After a couple hours I got a beachball. Switched out of warcraft... the machine was running, I could move the mouse over links in my safari window and they would highlight, etc. But each app I switched to would beachball, including the dock. This is characteristic of the boot drive disappearing for awhile. It can happen when the drive goes to sleep, or when there are problems. I've seen it before when drives went to sleep. After about 15-20 seconds, the machine came back ,and every click I'd made, every app switch and every attempt to open a menu item on the menu bar all executed at once, and really fast. I had a working machine for about 10-20 seconds-- just long enough to think it was a temporary glitch and then it happened again. This time the machine stayed frozen for over a minute at which point I held down the power key to force it to shut down. Upon reboot I discovered that the OS seems to be ok, but my filevaulted home directory is corrupt beyond repair. Putting it in target-disk mode and checking it out from another MacBook I'm unable to recover or repair or even attach the filevault home directory. Fortunately I've got a backup. I had previously set "Safe sleep" to be off. I have a WD Caviar Blue 1TB HD in the HD spot and the Mercury Extreme in the optical bay spot. I didn't disable SMS because I don't know if the WD needs it or not. I didn't reset PRAM or the SMC or anything like that. Resetting the SMC seems to be an issue when you want a 6GB SATA link, and I don't care since this drive is a 3GB SATA II drive. (and both HDs are showing up with a 3GB link speed.) I AM running 10.6.7. Any advice?