Basically when I have a stereo file in the waveform view, if I run the cursor over each channel to get the L or R symbol to appear beside the cursor, then I press delete on the independent selection ive made for that channel, the audio would delete / silence / disappear. i assumed this deleted as pressing the delete button removes the audio information. this does not happen in 10, which is a pain when working with a stereo dialogue file with 2 different speakers on the left and right.