I bought a MacBook Pro Unibody a month ago. I had the stock 250GB HDD inside of it. I replaced it with a 320GB WD HDD. The screen was white after powering on, and wouldn't get past that stage. I put it inside an external enclosure and strangely it booted up and allowed me to install Snow Leopard. I took it to the shop and they said the hard drive was faulty ?!? so I'm looking at it now and it's working cause i'm writing this post now. The question I have is in regards to returning to the store tomorrow. Should I leave the inside of the Mac hard drive less and carry the hard drive with me in the enclosure tomorrow? Or should I leave the hard drive inside the computer and then have them open it up and diagnose the drive? I am looking for the quickest way possible. I wasn't sure how apple would look if I brought the computer in without the drive... I just want to show them how crap of a job they did and show them the drive works fine. Any ideas? Thanks in Advance!!