Do you have Norton 360 or some other Norton security suite? If so, that's why. The double blue icons means there are files that haven't been backed up. It can be turned off. Go to Norton 360 http://www.symantec.com/norton/support/dtree.jsp?pvid= and learn how to turn it off, reboot and they will be gone. For anyone that does have Norton 360, if you kept it turned on, when you backed up the files, the icon would turn a solid green arrow instead of the 2 blue arrows.
I hope this helps.
Good luck!
Lorien - MCSE/MCSA/Network+/A+ --- If this post helps to resolve your issue, please click the "Mark as Answer" or "Helpful" button at the top of this message. By marking a post as Answered, or Helpful you help others find the answer faster.