I partitioned my external hardrive to use for time machine - most of the space I want to use for time machine, and the rest to use for whatever. However, I don't think I formatted the hardrive correctly. When I plug the hardrive into a pc, it won't recognize it. Is there a way to do it where I can use time machine on one partition and then use the other partition as a storage device that can be used with both a pc and a mac? Your help is appreciated!