Publishing Flash Movie problem

When I go to publish my movie the following message comes out on my output box:

WARNING: Duplicate label, Symbol=buttonact, Layer=Layer 1, Frame=15, Label=1back

Can anyone tell me how I can fix that??? Thans in advance

What does “duplicate label” in the outbox warning message mean?..i cant even find it in the Flash book that Im using…please let me know a.s.a.p THanks

You have labeled a frame… in fact, you’ve labeled two frames with the same label.

Frame labeling is done in the “Frame” panel, and can be seen in the movie timeline and will look like small red flags with text following them.