I was emailing _why directly but I hope this question could help other people.
Here is a simple example app I've been playing with. For some reason it doesn't behave as expected. http://pastie.textmate.org/private/nb2vlbmls0w85dpblhmuww 1. How can check that a flow/stack variable has been replaced/cleared? (so I can avoid a bad crash) 2. How come when I try to clear a stack the entire background gets affected? Thanks, -Matt
