No answers in Vector forum, thought i should try here
TrackIR Serial Number = 23898
Had trackiIR 3 working fine. Got version 4 working fine - all time, every time.
Get 6DO vector expansion. Now when i run it TrackAIR works until.... i quit or try to change settings then NO tracking, no images, no green light [after momentarily turning on after start-up]. after i try it again no joy. restart doesn't help, reinstall doesn't help. must either remove, uninstall trackir from device manager and regedit or shut the computer totally off and backon