When i go and do a File backup in Windows 7 Professional i get part way throught it and all of a sudden it loses connecti0on with the external drive i am backing up to and i get a 0x80070037 error in details and says backup is unsuccessful. I thought it was the drive itself so i swapped out and it still does it. Switche cables on external drive which is USB and same thing. Any help would be appriciated thanks