1. find the tracking.db3 file in your appdata folder (for windows 7 its
C:\programData\Rosetta Stone\tracking.db3 (hidden folder) and rename it
to tracking.db3.bak
2. Restart your computer
3. Open Rosetta Stone (Your profile and preferences will be lost sadly)
4. Close Rosetta Stone.
5. Rename the file to tracking.db3 again
6. It is all fixed now :)