New answer from them. I was just... curious.
"The issue is not fixed yet, but this version might just do the trick for you, considering that all Nvidia drivers are up to date.
Please allow me to apologize for the inconvenience this might've caused. I'm sending you the latest beta version we have for Windows. Please follow my instructions in order to perform a proper installation.
Remember to connect both devices through an Apple Certified Lightning cable. Try to also connect both devices directly without any hubs or extensions, and connect them through different ports in order to find the best connection.
1. (Please reinstall if necessary) It is very important that you download iTunes, as this is the way we integrate several components in order to run Duet.
https://www.apple.com/lae/itunes/download/ Please download iTunes and restart your PC.
2. Sync your iPad and power-cycle it.
Powercycle: http://ipadpilotnews.com/2012/11/ipad-troubleshooting-tip-cycle-the-power/
3. After that, please reinstall your Duet Windows app through the following steps.
>Please remove Duet Display from your Programs List or Add / Remove Programs and Restart your PC.
> This PC > Local Disk > Program Files > there is also a folder called Kairos. This does not appear in the app add/remove section. Please delete it (Don't worry if it's not on the list, it was removed properly.)
>Please download a new file from the following link and install it. Then restart your PC
https://slack-files.com/T03JN9WJD-FBHL7UWUB-7057b97741 1.5.2.2 "
Well... it doesn't work. So... don't bother doing the "thing"...