OS X dialog interferes with Rev screen refresh

[RGould8 at aol.com]

I've got an app that switches between network connection types in Mac OS X.   
In the event of an invalid PPPoE account during a connection attempt, Mac OS 
X displays a dialog box, and then Mac app is supposed to go to a new card that 
displays an error screen.

What's happening is that Revolution _thinks_ that it's displaying the error 
card, and the code on that error screen is running - - - however the user still 
sees the previous screen.   It appears that somehow the Mac OS X popup is 
preventing Revolution from updating it's display.

I've gotten around this problem by having Revolution display it's own dialog 
box, with the "answer" command.   For some reason that "wakes up" Revolution 
and gets it to update it's screen display.   

Is there another way to do this?   I've tries hiding/showing the stack, doing 
a "lock screen", "unlock screen" - - - nothing seems to work.