My Nvidia control Panel (German language):
My Monitor is in device manager as "PNP-Monitor (Standard)"
And please take a look at "USB-Controller" there should be a "NIVIDA Stereoscopic 3D USB controller" (the emitter).
Maybe you can try uninstall all Nvidia Driver components (via Windows control Panel) and Reinstall it with User-Options and "New Installation (delete all old settings)" set. If that not help, RMA.