You can still calibrate it. Remove the jumper, connect USB cable and start the device. Touchscreen calibration will start by default if battery is disconnected.
When in config menu you can select menu items by pressing and holding pointer on them for a second.
And there is a small bug in touchscreen handling code making a "non-linear response". More info in This topic.
So far it looks more like a hardware (joystick or power trigger) malfunction.
Last edited by ntrf.zns (2010-04-08 19:57:12)