To upgrade Syncplicity, please follow these steps:

1. Quit Syncplicity: Click on the Syncplicity icon on the menu bar, and then select "Quit"
2. Drag Syncplicity from the Applications folder to the trash
3. Restart your Mac
4. Log into http://www.syncplicity.com
5. Click on Install, then Download Syncplicity
6. Open the downloaded .dmg file and drag the Syncplicity application to the Applications folder.
7. In Finder, navigate to the Applications folder and double-click on the Syncplicity application.