Deleting your Preference File in Windows
From Miro User Documentation
1. Shutdown Miro
2. Navigate to the Support directory:
XP
C:\\Documents and Settings\<username>\Application Data\Participatory Culture Foundation \Miro\Support\sqlitedb
Vista
C:\\Users\<username>\AppData\Roaming\Participatory Culture Foundation\Miro\Support
3. Delete the preferences.bin file
4. Restart Miro

