screwd up options because of fn key

during battle or campaign pressing the FN key on my laptop causes all sorts of options being messed around and i have to then change them back.

this is quite annoying since the key is right next to the commonly used ctrl key.

its happened right now in the middle of a very important siege battle in my game and ive set everything back except i cant see any unit statistics by scrolling over and cannot find anywhere a hotkey to change this. how do i set this back?

also can u stop mtw from messing up when the fn key is pressed?