M18x and the new AMD/ATI 12.2 video driver works great, but...

If you own an M18x laptop with an AMD/ATI GPU make sure to install the 12.2 pre-certified driver and not the certified driver. They are the same thing except the certified driver does not have the ID it needs to see the M18x and wont install. Get the 12.2 pre-certified driver here. Improved video performance for me.