Mechanically..the keys are ok. Something disabled the keys. Is there an easy fix? I am an average user..and am not an expert. The reason I want to use the Fn+F3 is to disable the *** touchpad on my laptop. Until last week, everything was okay,,,but something may the disable thing disappear. My reason to disable the touchpad is to allow me to use the keyboard without the touchpad screwing my my type. I write and want no interference by my accidental brushing the pad with the heel of my palms. I do have touchfreeze..but it appears to not be very helpful. I just want to download something to activate the Fn+F3 function key that is currently dead, dead, dead.