This may be a OneTouch issue more than a MacBook one, but I really need some help. My MacBook has been acting strange so I need to backup my files before I lose anything. I have a Maxtor OneTouch external hard drive that I'd like to use, but when I plugged it into my laptop, the Time Machine comes up and then a warning saying that in order to use it, I'd have to reformat the hard drive. There are pictures on the hard drive, so reformatting isn't an option. Is there a way for me to use OneTouch to transfer my files on my Mac without reformatting? Or do I need to get another external hard drive?