User`s guide

Chapter 5 Troubleshooting the Touchscreen 123
The Stabilization value is too high. Try changing Stabilization to a
lower value in the Touchscreen Control program.
For more information, refer to Chapter 2.
Problem: Cursor does not reach out to the edges of the screen.
Try recalibrating the touchscreen. When calibrating the screen, be
sure you touch the center of each target firmly and precisely. Use the
Microcal utility to check for proper touchscreen operation.
For more information on Microcal, refer to Chapter 4.
Problem: Cursor is jumpy or takes sudden bounces across the screen.
The touchscreen is receiving more than one touch at the same time.
When you touch the screen, be sure to point and touch with one finger
only. Keep your other fingers away from the touchscreen.
If more than one finger touches the screen, the cursor jumps from one
location to the next. In the case of two fingers touching, the cursor
moves to a spot halfway between the two touch points. Touch only
one location at a time.
Problem: Cursor is jittery.
The problem could be one of the following:
The touchscreen may be receiving interference (noise). Adjust the
frequency level of the controller. Run Microcal and use the Noise
Check command to change the frequency level. For more
information on adjusting the controller’s frequency level, refer to
Chapter 4.
The stabilization value is too low. Increase the stabilization value
in the Touchscreen Control program. For more information, refer
to Chapter 2.
Problem: Cursor moves in the opposite direction of your touch movement.
Swap X/Y may be selected. Deselect Swap X/Y in the Advanced
Settings dialog box in the Touchscreen Control program. For more
information, refer to Chapter 2.