I recently upgraded to a new computer and downloaded my saved mail accounts and messages to my new computer from SkyDrive.  OS is Windows 8.1, with a i7 chip.  I use the IMAP mail format.  When I opened WLM I found that many of the folders had duplicated, along with the messages - 2 of everything.  I deleted all the duplicates, but they just keep coming back.  Is there a way to reset all my folders without losing a lot of important messages?