I posted a thread about a week ago about my MacBook(Intel Core 2 Duo, late 2006) not working very well, and I decided that it's a hard drive issue.. Well, I ordered this hard drive from Newegg. Tonight, as I went to install it, I removed the EMI shield from the old one, placed it on the new one, and attempted to slide it back in. The drive would go in all the way, but it didn't seem like it was "locking" into place. I took it back out, removed the EMI sheild and put it back on, and the same thing happened. One thing I noticied was that the new hard drive didn't have a power connector on the left side. Could that be the issue? Are there certain types of hard drives you have to get for a MacBook? I thought the only specifications were 2.5". Thanks!