I should mention though that installing Ubuntu was fast and without problems. The most difficult part was shrinking my Windows partition. And of course I have unsolved video driver issues. Otherwise: wow!
@koos Look for your drivers. Use the commands 'lspci' and 'lsusb' to discover hardware info to google about it. I think 'lspci' will return some lines with video hardware. Use gnome-terminal to see this
@HufflepuffBR yeah well it's a bit more complicated than that. I have two video cards (one efficient, one for 3D) and apparently I need Bumblebee to switch between the two. And to switch the NVIDIA one off when I'm not using it. I installed bumblebee but it does not recognize something. Nevermind, I'm just testing and don't really need the NVIDIA card.
@koos Anyway... Two things that can be: (1) you don't have the bumblebee service started/added to your boot sequence and (2) your user is not on bumblebee group. Also, you need to call the apps (games, normally) you want to use with the nVidia driver via command line, using 'optirun blah'
Hope this help
@koos forgot to say, you'll use glxgears or glxspheres