Hi. I had also problems with this driver. I have Clevo P170EM notebook and when I was using external display (or listening music by my amplituner Onkyo TX-NR509 using HDMI), the temperature of my GTX 675MX was constantly rising without gpu fan kicking in (it looked like mobo/bios didn't monitor gpu temp). Well when I saw what was going happening my notebook hit 126C and shut down. Fortunately for me, my graphic card survived. The thing that helped me, was installing newest driver 326.80. I wonder if someone have also similiar problem.