another hopefully simple question

i'm still working out the kinks in the gallery (basic thumbnail-to-show-full-image-gallery).

the problem i'm having now is with the "previous" and "next" buttons at the top, which, in theory, should lead you to the previous or next gallery page. simple enough, right? apparently not so much...

i'm using:

on (release) {

gotoAndStop(frame#here);

}


most of them work, but a few don't, and seeing as they're all exactly the same, only differing in the frame number they're going to, i don't understand what the problem is.

any ideas?
thanks mucho in advance!