thanks for your swift reply.
and thank you, yes i know how to do a RAM preview… i figured that one out about 1996.
as i said before, i have audio when i scrub, but not on RAM preview. i can see the audio levels move and i have the waveform, but no output, unless i render to a movie. anyone else come across this problem in CS4? i noticed a lot of audio problem posts about changing the media cache…