PROMULTIS Touchtable User Manual page 19

 Solution:
 Check if the end with two USB heads are plugged into computer, and
try to exchange another USB cable if you have
 Check touchscreen data
 Solution:
 Make sure touch surface is clear and without anything might block
Signal.
 In this case, you have to send this report to PQ Labs support team:
Steps: Click on "Send Report"
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