Hello!

I don't seem to be able to get the nVidia driver to work, in games. I recently switched to Elementary OS a challenge to my self, because I'm sick and tired of Windows. So I'm using an Fujitsu NH532 I7-3610QM GT 640M LE. I've quite familiar with the ubuntu server side, but a beginner when it comes to Linux desktops. I tried searching these forums and the net for this problem, but found nothing.

Steps i've done:
-Installed Bumblebee
https://wiki.ubuntu.com/Bumblebee
-Purged bumbelbee and installed it again
as instructed in the above link.
-Installed the proprietary nVidia driver

Symptoms:
-nVidia X server settings does not allow me to change from "Intel (power saving mode)" to "nVidia (performance mode)". When I try switching it gives me an error popup with no text in it, just an ok button.
-Games not using nVidia graphics

Please help and please excuse my n00biness