Looping a layer

I'm new to Flash and have been fooling around with it a bit. I was wondering if it is possible to repeatedly loop one layer while continuing playing the others. Basically I want one animation to keep on running while I have a sound playing in the background.

Thanks

you can't loop only one layer, basically 'cause you don't need to.
what you have to do is.

press ctrl+F8 to create a new symbol, then select movieclip and name it. you'll be taken to a new timeline (the movieclip timeline) here you can make your animation that will automatically loop as long as you don't put a stop(); action in it.

then you leave to your main timeline (Scene 1) and open the library (press F11) you'll notice that your movieclip is in there. select frame 1 of the layer you want to contain your animation and drag the movieclip from the library panel into the stage.

create a new layer and after selecting it's frame 1, go to the actions panel and insert this code - stop();

for the background music you can insert it in a frame in the main timeline or just make a new movieclip symbol and insert it there.

ctrl+Enter to test your movie.

hope this helps.