Movement Problems

[Arnath]

Now that I'm finally in WoW, I've started experiencing some movement problems. When I was in the stress test and I would target a monster and click a skill button, say '2' for Sinister Strike, I would walk up to the monster and use the skill. However, when I do that in the Open Beta, I get a message that says I'm out of range and then I just stand there. Is there some way to fix this? Thanks.

Arnath