splitting AS over several frames?

Hello ming-dev fans,

When I put all my AS (ming-0.3a) in one frame the applet runs fine in
Flash MX Player 6 & 7, even with no $movie->nextFrame() statement.
However, when I split the AS code over several frames, and then add a
final frame containing just

  $movie->add(new SWF::Action("gotoFrame(1);play()"));
  $movie->nextFrame();

the applet objects display but behave erratically when I try to
click-and-drag them. Any ideas what I am doing wrong? 

Thanks for any helpful suggestions.

-Laurent

Note: in the first frame I define some objects and associated AS while
in the other frames only AS code.