a close button

Hi i have made 4 different buttons with movieclip effects that will open four different movieclips on the same stage i want each movie clip to have a close button and navigate better on the stage everything works except when i close one movie clip and try to open it again it doesnt work

it works only if i go to another button and then return to it once more
my boss wants that fixed i need help!

i have read something about popup movieclips but i dont really get it.

i would appreciate some help thanks

It would help if you provided what version of flash your using and some code.

Yes im using flash cs3 i just got back into flash and im not familiar with features in this new version especially the actionscripting. I mainly work with movie clips and incorporate them into one scene.

i appreciate your help