Sounds like the backup tool may be either overwriting the entire folder instead of just the targeted character. XI did this too, but we had 4 save slots (one local, 3 remote), so we could back up in a rotation of sorts.

xcopy has command switches that will prevent older files from overwriting newer ones, so you could go the batch file route if you are savvy with that stuff. Would have to share folders, map to them, and then xcopy them with the /D /Y switches to copy only newer files and automatically overwrite.

The built in Windows Sync Center may be easier to set up though. Share your folder(s) and set up the partnerships. You can set them on a schedule, or triggered by particular event (like after sign-on), or go in and manually synchronize on demand. The location and config will differ depending on which version of Windows you are on (in Win8 it's in Control Panel). Here is a quick overview (yes, it's a Vista article, but concepts/functionality still applies to newer versions):

http://windows.microsoft.com/en-us/w...mation-in-sync