Do you install the guest additions through the virtualbox-ose-guest-* packages or through the iso image ("Install Guest Additions")?
-- X Fails to start once VirtualBox Guest Additional Drivers is installed https://bugs.launchpad.net/bugs/540015 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs