Okay, I'll first say that I'm really not very good with this kind of stuff so try and stay with me. I own a pc and a mac. I recently bought an IOMEGA External Hard Drive 1.5tb. I hooked it up to my mac thinking I could put all my pictures on it and then transfer them to my PC. Now, when I hook it up to my PC it doesn't read it. I found out that it is because it is now formatted to mac OS X. Can anyone tell me how to change it back to NTFS?