Hi All I'm trying to format a 2.5" 320gb ext. hard drive that I've used on my old pc. I want to format it from Fat to HTF+ (?) so i can swap it with the one in my MB Pro. My problem is that when i try to format it via disk tools it stalls at 2min left and don't continue.... Tried to stop it, and reformat to FAT. Sometimes it worked then it didn't but still can't format to a usable mac drive.. What's wrong and how can i fix this.... the 160gb is close to filled to the edge.