Dell Latitude D630 - 4GB RAM - 128GB SSD - Nvidia Quadro NVS 135M - Intel 4965 wireless - DVD/CDRW - bluetooth - fingerprint reader
Tweak42, your link helped me figure out the problem inadvertently! I wasn't using the "optirun" command to launch games. I didn't know that was required to use the GPU.
Btw, Primus looks awesome