I also had this problem with virtualbox-ose-2.0.4-dfsg-0ubunutu1 on
Intrepid. However, when I uninstalled the Ubuntu package and installed
the non-free version 2.1.2 from virtualbox.org then the problem was
resolved
--
virtualbox-ose package doesn't have guest additions iso image.
I also had this problem, but I did the following:
1. Upgraded my host VirtualBox to the non-free version 2.1.2 from
virtualbox.org (previously I was running 2.0.4-dfsg-0ubuntu1)
2. Used the Install Guest Additions command on the Devices menu (this
didn't work for me before the upgrade)
3.
