I want to release the menu, and then show it again each time we switch clients, so we can enable client-specific security.

I tried adding the following in a class called from goApp:
goApp.ReleaseMenu()
goApp.ShowMenu()

After running through this code, and then trying to exit the MereMortals application, we get the error: GOAPP NOT FOUND

If we attempt to execute the ReleaseMenu() ShowMenu() code multiple times during one execution of DO MAIN (by changing clients), the menu disappears.