AS2 Sound

Hi, have a swf (A) with sound embeded, swf plays OK solo. Have a parent swf that loads A into a movie clip… no sound from A. When I was loading A to a layer [loadMovie(“a.swf”,45)] from the parent swf, sound played OK. What am I missing now loading it into a mc [loadClip(“a.swf”,“mc”)]?

The swf loads OK, is present and will do other functions - but no sound. Thanks