My Revoice Pro 5 window does not say "Revoice Pro 5" - how do I know that I am actually running version 5?

Revoice Pro 5 shows a "Revoice pro" logo and an orange link button in the lowest left hand corner of the application window:

Revoice Pro 4 shows a "revoicepro4" logo and a neon green link button in the lowest left hand corner of the application window: