how would I (if using arrow keys)
a) reply
b) curse/cure
c...etc?
I was only able to go up down...nada else.
The keys' only function when used alone is to scroll up, down, and left or right too if called for.
They can be used to go back (Alt + Lt. arrow) and forward (Alt + Rt. arrow).
In a reply window you can use them alone to navigate text one character or line at a time, or in combination to jump to the next word (Ctrl + Lt. or Rt. arrow), select lines (Shift + arrow Up or Down), and select words (Ctrl + Shift + Rt. or Lt. arrow). These are Windows/Netscape shortcuts, btw, and may vary.
In other words, they will not perform any commands on the forums other than navigation.