I am having a problem with my external hard drive. I was using it the other day working with some of the files on it and it shut down my computer a couple times. The second time it did this, after the computer shut down, I would turn it on and then it would go right back off until I removed the hard drive and turned it on and it was fine. Now my computer won't recognize the hard drive at all when i plug it in. The light on the hard drive will come on but it will not show up on my computer. The hard drive is a WD 1TB Passport and it still works fine with every other computer I plug it into, PCs and macs both. I have a late 2008 13" Aluminum Macbook. Any help, suggestions, or ideas of what to try or what I should do would be appreciated, thanks.