I've got a really strange problem. I've got a form that runs a long process within a loop. I want the user to be able to hit Escape to exit the loop. I've implemented this in the standard way:

llXit = .F.
on escape llXit = .T.
set escape on
scan while not llXit
   ... Processing code here
   DOEVENTS
endif 

This works as expected if I just DO FORM.... from the Command Window. However, if I call it from the menu of my app, it either ignores the Escape key or hangs. The menu option is just a command that says DO FORM... just like I do from the command window. The form has a private datasession.

I'm sure there's some difference in the environment between the two situations that's causing this difference in behavior, but I can't figure out what it is. Anyone have suggestions as to what I can check?