Howto Enable Sound on Scroll

Hello Everyone!

I have used long time ago After Effects, and now it's time again.
I am running CS3, and the following question came up. I have done this in the
previous versions, but now have to do it again.

Question:

How can I enable the sound on every frame, when I scroll on the time line?
I want to create an effect on a beat, and without hearing it, it's very hard to
find out where that beat is. I would like to snap the effect to it. I was able
to enable audio while I was scrolling on the time line in AE 6 I believe. How
can I do this again? Or any suggestions, how to snap an effect to a beat?

Thanks,

Cool Man!

Select the layer and hit LL on your keyboard to see the audio waveform.

- Jonas Hummelstrand