The application starts you out at your last GPS position, or 0 degrees latitude, 0 degree longitude if you don't have a GPS receiver. Try zooming out all the way to see if you can get back to the world view. If it still doesn't work, run this command in XTerm (which will clear your settings in GConf) and re-start Maemo Mapper: Code: gconftool-2 --recursive-unset "/apps/maemo-mapper"
gconftool-2 --recursive-unset "/apps/maemo-mapper"
gconftool-2 --type float --set /apps/maemo-mapper/last_longitude -- -115 gconftool-2 --type float -- set /apps/maemo-mapper/last_latitude 45