I have recently come across a problem. When I transfer movies to my laptop, the audio portion of the file seems to disappear. I had a Quake 3 movie that played fine on my desktop PC, but once I transfered it to my laptop, there was no audio. I used G-spot to check and sure enough, no audio. This also happens when I download movies with my laptop. I am not sure why it does it, but I would appreciate help if someone does.