I'm attempting to build a BT4 pre-final guest in VirtualBox 2.2.4.

Following Muts' how-to video, I've managed to install BT4 to hard drive.

Next, I try to install the vbox guest additions, the install script complains that I don't have build and header files for my current Linux kernel, and that the kernel doesn't support OpenGL.

I've tried:
sudo apt-get install build-essential linux-headers-`uname -r`
It all seems to install, but vbox is looking for it elsewhere, so proceed to symlink the necessary directories:

sudo rm /usr/src/linux
sudo ln -s /usr/src/linux-headers-`uname -r` /usr/src/linux
Vbox guest additions installer finds the necessary components, but it now reports: "building test kernel module vboxadd_test_drm failed"

Anyone have any ideas on where to go from here?