Michael Naumann said: > Warning: could not lock the chache file. Opening in read-only mode. I have never used this program, but if it were me the first thing I would do is run strace on the app strace aptitude and see what file(s) its trying to access. if the screen scrolls to hell and back I do: strace aptitude >&strace.log and load strace.log in your favorite text editor or text pager. nate