I was too enthusiastic with the programm. I loaded too many songs... thought of too many ways to use the program. Made too many playlists with songs I want to work on. I come to the conclusion to start from new with a complete new, empty setup. I will export all songs I completed (so I can import them back), then I ll make a full backup. But how can I delete everything after that, and get a complete fresh song-/programdata?