Hi,
This was solution for some users, this is just copy/paste:
"Just follow up these steps
Open up /etc/apparmor.d/usr.bin.vidalia file with root permissions.
For this you can run sudo gedit /etc/apparmor.d/usr.bin.vidalia in a Terminal.
Add this line /usr/bin/tor Ux, anywhere inside the /usr/bin/vidalia {...} block. Place of this line in that block does not matter. Add just after /usr/share/icons/*/index.theme k, for exemple.
Run sudo apparmor_parser --replace /etc/apparmor.d/usr.bin.vidalia in a Terminal.
Okay, now you're done!"