>I want to display to the user a MESSAGEBOX with
>YES and NO. I want this MESSAGEBOX to time out.
>any ideas?

This small example will illustrate the simplest solution:
1. Create a form with commandbutton and timer (Timer.Interval=5000, Timer.Enabled=.F.).
2. Commandbutton.Click event
thisform.timer1.enabled=.t.
=messagebox("ok")
thisform.timer1.enabled=.f.
3. Timer.Timer event
keyboard '{ENTER}' && you could also consider ESCAPE or Hot keys (Y/N) here