Just received my OWC Mercury Extreme Pro 6G today, after waiting 4 weeks and a promised delivery date of May 11. I also bought a data doubler + external enclosure for my optical drive from maxupgrades.com. I've been dying to get this thing. Since I had nothing else to do but wait, I've been pouring over forums and blogs to know what to expect when installing this in my 2011 17" MBP. My serial indicates my laptop was built in late April (I just bought it 2 weeks ago), and from what I've read, the later builds do not have the SATA III issues. Even so, I've been on pins and needles waiting to see if this ridiculously expensive purchase will have any of the dreaded issues many 2011 MBP owners have experienced with SATA III compatibility. I installed the drive in the main SATA III bay, leaving the optical drive in so I could install Windows 7 afterward (since Windows 7 can't be installed from an external drive). To my utter dismay, when booting up the OSX install disc and into Disk Utility -- alas, the drive wasn't there. So then, reluctantly, I applied the OWC cable shielding kit. Booted again. No dice. At this point, I figured I was among the unlucky souls to acquire a non-working 6G link speed. Knowing that the Mercury Extreme 6G will work without issue in the optibay (aside from 3G link speeds), I decided to put it there, since there wasn't any alternative (and to see if the drive was possibly broken). After the pain in the ass task of installing it, I boot again (this time with the stock 750GB drive in the main slot), and yet again, Disk Utility is still not recognizing the drive. Now, am I stupid, am I doing something wrong, or is this drive dead? Is there something I should do before getting an exchange from OWC?