Eye tracker not working / throwing Windows errors.

Uninstall Gaze Interaction Software.

Uninstall Tobii Eye Tracking

Uninstall Tobii IS3/IS4 Driver

Delete the following folder:

C:\ProgramData\Tobii Dynavox\Gaze Interaction

Reboot PC.

Reinstall Gaze Interaction Software.

If problems persist, contact Link Assistive.