Thank you for clearing that up. MioMap is a very old program that really doesn't have much value anymore. So if you can't find an exit button with MioMap I wouldn't be concerned. I'm not familiar with AutoMapa. Are you satisfied using that program?
I don't use the Visual unlock so I'm not familiar with its operation. My unlock for my Mio C320 works as such. When I start up my device, it starts as normal and when I see the MioMap icon I press it and it automatically goes to the unlock where I can then choose whatever program I wish. If you want to see it, here's the link
http://www.navitotal.com/showthread.php?8816-Mio-3.3-unlock-modified-for-use-w-Primo2 I don't know if it will work on your device though. When I exit a program, it automatically returns back to the unlock where I can then choose another program if I wish. When you exit a program does it go back to the unlock menu?