I recently sold my unibody macbook and bought a 13" MBP (before I get flammed i bought my umb refurbed and sold it for $1,000 on cl the day of wwdc. and bought a 13" mbp with an apple employee d/c for like $984 or something) Anyways back to the topic. I tried installing my WD Scorpio Blue 500gb HD into my new mbp. At first I though all was fine and everything was just as it was on my umb. Then I tried to watch some porn and realized there was no sound! There was a circle with a slash through it whenever I tried to turn the volume up or down. I had to do a time machine backup to the stock drive, reinstall leopard, then do a time machine restore. It was a good 2 hrs of wasted life. I don't know why this happened, but just happy the issue is now resolved. There is one weird thing i noticed though, when i boot up windows via bootcamp to Windows 7, there is a redlight coming out of the audio in/out port. Any suggestions?