There is finally a magic button that will fix all your problems! Just kidding.

But there is a Reset Button on the back of your Diagun (right side, in the middle). If you notice any display issues, if the Diagun "won't read card" or if you encounter a frozen screen, take your stylus pen and press the button once to restart the unit. This should remedy 90% of those annoying technological issues. 

Don't forget to calibrate your screen when the touch screen will not respond to touch!

Dang, I really thought you had a magic button in here! 

Mr. G