I have some zip files whose contents I have been trying to move over to my seagate external hard drive. Every time I try to move the contents (not the actual zip file) over to the external it successfully copies them, yet afterwards when I delete the zip file and contents from the Mac's hard drive, both the copies of the files on the computer and the hard drive are deleted at the same time. I see no reason why it would ever do this seeing as the files on the external are completely new copies of the files on a different drive. Anyone else have this issue? It's incredibly annoying.