The Palm Z22 is a very solidly designed device to reliably store your personal data, however, it is subject to 3 failure mechanisms, all related to its AGE of over a decade of use. The batteries are all dying - even in an UNOPENED, sealed, "AS-NEW" package, the battery is almost dead. The TOUCH SCREEN is a delicate stretched layer of plastic on top of a layer of glass. The top layer bends down a touches the glass layer, and invisible layers of "wiring", electro-deposited on the layers, touch each other. Over time, with air-pressure changes, heat and cold, and mostly objects pressing on the screen (such as carrying it in a pocket, purse, briefcase, or even leaving it in a drawer with pencils, paper, pens, staplers, etc.) , the top plastic layer deforms and touches the bottom layer, which renders the touch screen dead.
My page on the Z22 is at :
and has tips and tricks on temporarily getting your screen working, as well as how to replace it yourself - $9 U.S. free shipping from China.
I hope that this helps you get your Z22 up and running again, and helps you to keep it functioning.
robin dusty graves
Z22 PALM PILOT