If you keep seeing sync error message in system tray, then you should download this hotfix.
There are two separate download available, one for 32bit operating system and the other one for 64bit.
Make sure you download and read the readme file and follow the instruction. It’s not as simple as double clicking the installer.
Download the hotfix here: http://usa.autodesk.com/getdoc/id=DL19683742
