try 'apt-get update' first, I pushed opendune 0.7.2555-maemo10 to repositories yesterday. Then 'apt-get remove opendune' (if you have opendune already installed). You can also try 'rm -rf /opt/maemo/usr/share/games/opendune/data' If that doesn't help you can delete (or create) /opt/maemo/usr/share/games/opendune