Hi. I just rec'd my 24SD and was working on recording some drum tracks. After a bad take I wanted to undo the record. Press undo, get a window with a list of operations to undo and an arrow over F4 but when I select the top operation "record" and press F4, nothing happens and the track take is unchanged. hmmm. Am I doing it wrong? Can't get any undo at all. I have the list set to 10 in my preference. The manual references and undo light that is supposed to blink but I don't see the light anywhere. thanks for any help. Bob.