I am a relatively new Mac user. Unfortunately my profession requires that I use Visual Basic sometimes. So I used Boot Camp to partition my hard drive and installed Windows 7. The only thing is that Time Machine is now very slow. It worked fine before I had partitioned my hard drive. I'm not sure why it's doing this. Other threads have said that it doesn't try to back up your Boot Camp partition, but it now says it has about 20gb more to backup that it didn't have yesterday. Time Machine is basically useless at this speed. Any ideas about why this may be happening?