Rob,

all I do is click the [x] in the top right corner of the window to exit the audio edit environment. So far it seems to save whatever I did automatically upon exiting.

whe I say it saves it, I mean it saves to the project environment... upon exiting, the track behaves like it is split.

You can tell if a track has been split because there is a vertical line visible in the track... also, if you click on either side of the split, only one part or the other will be hilighted.

Naturally, it isn't saved to DISK until you save the project.

I like this because timing is my main problem. This window makes it very easy to scroll through the passage I just played to see how the peaks of my WAV line up with the timing markers. When they don't, I just split and drag until they do. This has saved me a LOT of headaches since I learned it was there.