I just mirrored the internal hard drive of this MBP to another SATA drive. I booted it successfully via USB. Now when I put it inside and plug it to the SATA port, nothing! I get NO bootable devices! It's a Seagate Momentus (9rt14g-500) in a MacBookPro5,4 Oddly, this drive has jumper pins but NO jumpers included! I had a similar problem where a drive wouldn't boot because it had no jumpers...but that was a PATA drive! What gives!! Help please!