I have a Maxtor USB external hard drive that I hook up to my laptop, and I also hook up my Sony digital camera to transfer photos. Last night, for some reason, the computer switched the letter of my HD and camera. Typically, it recognizes the my drive as "E:" and the camera as "F:". I have all my mp3's on the external HD and use iTunes. Since the location of the files has changed (they are now on F: instead of E, it has screwed up my iTunes. How do I change the letter of the drive?? I really need to do this. Please help! Thanks!