Try to run
Code:
ls -l `which calibre`
in a terminal, and paste the result here. You should see something like
Code:
lrwxrwxrwx 1 root root 20 nov. 24 15:49 /usr/bin/calibre -> /opt/calibre/calibre
This will help us determine which version of calibre is called when we try to run it.
N.