[Staffslug] Friend managed to start virtual box kernel with grub

Hello everyone, I was just wondering if I could get some information on some of the events that have recently transpired. My mate has recently tried to install virtual box on his pc, succeeding in this task, he booted his pc to see his X server had loaded default drivers, and his mouse and network had stopped working, when I checked the kernel version it has gone from 2.6.28-13-generic to 2.6.28-13-server. How the bloody hell can this happen, the pc was booting a virtual kernel, which was then loading up as it would on a normal install....I've fixed it by removing this virtual kernel, but can anyone shed any light on this? thanks, -- Kris Douglas