Do you hear some 'dings'?
No.
Did you try to switch to desktop when it's stuck ?
No -- I can leave it completely alone and it'll still crash to the desktop.
Did you delete all the files in the savegame directory ? because 5 directories are not savegames but part of the game files in there.
No, I haven't. Both the directory for my save and all 5 bd_act*_start directories are there.