User`s guide

TouchWare for Windows NT User's Guide128
Error: A serial port (UART) was not found at the address specified.
Use Microcal to check the touchscreen controller’s COM port and
base address. Use the Hardware Controls dialog box in the
Touchscreen Control program to modify the COM port and the base
address used by the touchscreen driver so that they match those of the
controller.
After changing the communication settings, reboot the system.
For more information on Microcal, refer to Chapter 4. For more
information on the Touchscreen Control program, refer to Chapter 2.
Touchscreen Care and Cleaning
The touchscreen does not require much maintenance.
MicroTouch does, however, recommend that you periodically clean the
glass touchscreen surface.
Use isopropyl alcohol or a non-abrasive glass cleaner. Avoid using
cleaners other than glass cleaners. Do not use any vinegar-based
solutions.
Apply the cleaner with a soft cloth. Avoid using gritty cloths.
Always dampen the cloth and then clean the screen.
Always handle the touchscreen with care. Do not pull on or stress
cables.
Status Light on the Controller
Some touchscreen controllers have a light-emitting diode (LED) that
provides the status of the touchscreen unit and monitors several
diagnostic features in the unit. If you are experiencing problems with
the touchscreen, be sure to check the LED.
The controller status light brightly flashes on and off when you power
on the system and when you touch the touchscreen. The light should
be dim at all other times. A continuously blinking indicates an error.