How to correct virtualbox installation

Here is how the error output is if I run `virtualbox` from the terminal. How to correct it? I am on a Ubuntu 12.10 64bit machine. virtualbox WARNING: The character device /dev/vboxdrv does not exist. Please install the virtualbox-ose-dkms package and the appropriate headers, most likely linux-headers-generic. You will not be able to start VMs until this problem is fixed. EDIT: I have both the latest `linux-headers-generic` and `virtualbox-ose-dkms` packages