Quote Originally Posted by Evangela View Post
that's what it should be. but I'm sure that I can toggle the target type while action bar is up, when I casting a spell and press UP or DOWN, it's really change target type! maybe it's a glitch that's why not so many ppl notice about it

If you are pressing UP/DOWN after you've activated a spell but before selecting a target, then yes, that's how it's supposed to work...since you're supposed to select a target. >.>