Thanks for responding. I can't answer your question directly at the moment, because up to now I've had the `show running' tray icon disabled. I'll enable it and see what happens. However, since many of my macros are simply to launch a program, I presume that the macro stops running as soon as the program starts to launch, whereas the `dead' period continues. By the way, this isn't exclusive to Vista; I used to get the problem with XP as well.