Hi there.. having a problem with frequent unresponsiveness, short locks, skipping songs, bechballing etc. after upgrading my 15" macbook pro's harddrive to a 12.5mm 1tb western digital scorpio. I ran "verify disk" in OSX as well as off the install DVD before boot and it came up clean. I also verified permissions and the only issue was the airport permissions glitch that happens after an update. Not exactly sure how to attack this at this point. Anybody with the Western Digital Scorpio 1tb 2.5", please chime in with advice or any experiences you've had with this drive.