Pressing Num Lock causes a beep

On touch screen devices with eyetracking such as e.g. the I-Series, you will hear a beeping sound through the speakers when pressing NUM Lock on a connected external keyboard while in Tobii Dynavox Gaze Interaction Settings, This is due to a Windows feature called Mouse Keys that Tobii Dynavox Gaze Interaction software enables. 
 
That beeping sound is only a notification and not causing any problems. You can temporarily turn it off by the following changes in the Windows settings:
  • Go to Windows Control Panel
  • Ease of Access
  • Change how your keyboard works or Make the keyboard easier to use
  • Uncheck "Turn on Mouse Keys"
  • Click OK or Apply
Note that this will only solve the problem for this session, it will be reset once you've closed and start TGIS again.

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