I am constantly switching w/ fn/esc between F12 button that is supposed to permanemt and completely delete an email in Outlook, and F3 functionality in Autocad, where F3 does one thing, F8 another, etc. The two systems are at odds and I have to be switching. Caps lock is something I go back and forth all day long, in architecture i need to write in caps and your keyboard doesn't have a light telling me caps are on or off - f...g frustrating, I had no idea how useful the little light is.
It is so frustrating that I already found an alternative keyboard w/ the light - gotta have it. Ditching this keyboard soon.