Rollover/out button effects

oki wanted to know if you can make a strict rollout button. this is what i have so far. i made a button and when i mouseover it, it plays. when i take my mouse off of it, it plays again… but if u move the mouse kinda fast over it and take it off quickly it wont play the 2nd part…

wait i changed the rollout to gotoandplay(11) so it seems to be working better…