Sound Problem

Ok, working on my mediocre map as always, I've run into a problem. In my n00bish stupidity, I can't figure out how to play sounds. In my trigger I have it so that when you enter Region A, it plays SpellbreakerPissed3.wav, using the Sound-Play Sound function. What am I missing here?

Make sure you have set the sound so that it isn't 3D. Also check to see if it's channel is one that conflicts with other game sounds (such as Music or Ambient)

Did you use the sound manager and import it? (import as sound, I mean)

I seem to have done all these things, yet still no luck. Hmm...