I use Teamviewer v9.0 to remote control my NUC with Windows 7 64 bit.
Everything works well as long as the NUC has a display connected, I use the display port.
If the NUC-display is removed, Teamviewer can connect, but no picture is showing up.
To me it looks like the NUC is loading the display card driver only when the display cable/display is connected.
Anyone with an idea how to solve this?