Check the monitor to computer cord, sounds like it might be loose or disconnected. swap another monitor in and go to display properties to see if the tatung is a 2nd monitor. using the replacement monitor redownload the drivers and reinstall. turn off and hook the tatung back and it should recognize it
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Check the monitor to computer cord, sounds like it might be loose or disconnected. swap another monitor in and go to display properties to see if the tatung is a 2nd monitor. using the replacement monitor redownload the drivers and reinstall. turn off and hook the tatung back and it should recognize it