I have been trying to disable the touchpad using the function key 'fn' and the 'f9' key which is supposed to disable the touchpad, but nothing happens. I have tried downloading a fresh driver from the nominated Asus site, but after much time waisting I get a hardware mismatch error when I try to install the driver. I use my Zenbook for work and this problem is having a real impact on my productivity. I hope someone can help me. If I don't get this problem fixed soon, I don't think I will ever buy another Asus product of any type.