>Ok, doesn't work for me. We have an @SAY PRG calling the function in another PRG. No matter how I wrap it with the code you gave me, I can still hit F7 hotkey and have it function immediately after the code to lock _SCREEN has been run. It seems to have no affect.

Strange. I don't have more ideas at the moment (working on somehting else), may be other people have better suggestions.