Nevermind, this file fixed the problem for me after a reboot, perfect!! http://dlcdnet.asus.com/pub/ASUS/nb/DriversForWin8.1/KBFilter/KBFilter_Win81_64_VER1005.zip

Hey Stereofunk,I have the exact same problem, it's so annoying. I already have the touchpad disabled, and it's still happening. Have you got a solution?Greetings!