NaturalPoint TrackIR 5 Manual page 22

If there are no unknown USB devices in the device manager, unplug the camera and then uninstall the software;
otherwise, remove the unknown USB device first, then unplug the camera and uninstall the software.
Perform a system restore to a time before you had your problems. This will clear your registry and reset your system to
that day. Any installations of software or hardware since this date will need to be reinstalled again. Once the restore is
done and system reboots, unplug all extraneous USB devices. Leave Mouse and Keyboard plugged in.
Reboot a second time.
Now begin the installation of the TrackIR from scratch.
Install the software first. Use the latest version from the download section of our website.
Plug in the TrackIR unit. The found new hardware wizard should start. Follow the installation instructions at the
beginning of the manual.
8.2 Problem : Erratic tracking, the in-game view "jumps" instead of panning smoothly.
Possible Causes
Interference from another light source.
Solutions
1. Click "Display" then "Camera View."
2. You should see three green dots in the window. If you see more than three objects in this window, check for highly
reflective items or direct light sources in the background. Move these objects, move the camera, increase the light
filtering on the Camera tab, or reposition your monitor.
8.3 Problem : All or some of my Hot Keys will not work.
Possible Causes
Conflict between selected key function and other system properties, or key already selected as a different Hot Key.
Solution
Select a different key for this function.
8.4 Problem : None of the speed settings for view control feel right.
Possible Cause
Incorrect speed settings.
Solution
See sections 5.7.2 and 5.8.1.3 for information about how to adjust the speed for a profile.
8.5 Problem : In-game view control feels jittery.
Possible Cause
Not enough smoothing.
Solution
Increase smoothing slightly. See section 5.7 for information on how to adjust the smoothing for a profile.
8.6 Problem : In-game view control feels mushy.
Possible Cause
Too much smoothing.
Solution