Hi all, I got my new 13" MBP a few weeks ago, and ordered this Thunderbolt to HMDI adapter so I could use my TV as a sort of second display. However, when I plug it into my Macbook, the laptop's screen turns blue for a few seconds, but the TV continues to say no signal. I know that the cord isn't busted, because I tried it on my mom's Macbook Unibody and it worked within seconds. Any ideas? Thanks!