I tried that too and only difference was, it repeated at 2 second intervals instead of 1 second. Oh and if you press the key and release and then press it again .. it won't work for two seconds ... I could definately see not wanting function keys to repeat.
Edit: But then again .. if you don't want it to repeat, don't hold the key down
Hi. the best way you can avoid it, is using some of the previous methods. The reason is, when you hold a key, windows reacts as if the key is being pressed quickly. There is no way to know if you hit very quickly some key, or you just hold it.
I guess I should say why I originally posted this. I have F5 to identify a couple of my nicknames. I don't want something happening where the F5 key is accidently held down for an extended period of time.