Touchscreen offset on Treo

Has anyone else had a problem with the touchscreen values being offset vertically - on a treo 700w? I don't have access to the device, but I'm being told that they have to click below the buttons in my game for the click to register. They claim this problem is with several applications - not just mine.
This game works fine on another square screen device as well as the newer emulator with the square configuration. So I'm a bit lost as to what may be the problem.
This game works fine on another square screen device as well as the newer emulator with the square configuration. So I'm a bit lost as to what may be the problem.