I managed to use Unity (slowly) and then installed Lubuntu. I restarted the machine and now I CAN'T GET X TO LOAD ON TTY7. I can switch to login terminals though. jockey-text tells me that I am using the kmod:vboxguest. I installed nvidia-common and tried to set it as default using jockey-text but jockey-text only detects the kmod driver.

I was going to report this on Launchpad but I don't think I understand about drivers in VirtualBox fully...can someone explain how to install and make default the nvidia-common driver in Ubuntu 13.04 Daily in VirtualBox?

System Specifications:

Guest RAM: ~1.5GB

Intel Pentium M Dual-Core @ 2.5GHz

NVidia GeForce 7050

Update 1: I rebooted and now I get [ OK ] in the top right with a flashing cursor.

Update 2: Found this. (Yahoo Answers post from 4 years ago that says that the virtual machine can't use things on your motherboard. Hmm).

Update 3: FIXED, just typed sudo lightdm in tty1 and that seemed to start it. (facepalm)

Update 4: ...or not...tried 'sudo lightdm' and it just came up with a load of text ending in [OK] on tty7. Restarted and now it won't boot at all.

Note: I was going to answer myself but couldn't (due to a low rep cooldown) and now it still doesn't work.