Receiving a Runtime Error could indicate corruption in the Musicmatch Jukebox configuration. Please do the following:

1. Double-click "My Computer".
2. Double-click "Control Panel".
3. Double-click "Add/Remove Programs".
4. Select "Musicmatch Jukebox".
5. Click the "Add/Remove" button.
6. Select "Yes" if you are asked to verify that you want to remove any shared files.
7. Open Windows Explorer.
8. Navigate to the Musicmatch Jukebox directory (typically "C:\Program Files\MusicMatch\MusicMatch Jukebox").
9. Select the files (but not the folders) in the Musicmatch Jukebox directory.
10. Press "Delete" on your keyboard.
11. Select "Yes" if you are asked to verify that you want to remove the selected files.
12. Reinstall Musicmatch Jukebox.
13. Reboot your PC.