Can't get cmdpause to work

I'm new and can't get the cmdpause to work.  I'm using Captivate 6

I have a main menu.  When someone returns to the menu I have a variable on the returning button that sets a variable vMainMenu to 1.  

Upon reaching the main menu,

If vMainMenu = 1 then

cpCmndmute = 1

cpCmndpause = 1

else Continue

Upon returning to the menu, sound is muted but the slide continues (it does pause at a clickbox later in the slide)

Any idea on what I'm doing wrong?

Thanks...