Gpu-tweak Hardware Bug?

I've just reinstalled Asus GPU Tweak (a monitoring & O/C'ing app supplied with my GFX card) into a new mobo & CPU build, but for some reason the program isn't detecting my cards ID, normally shown at the top of the GUI to the right of the red "3D" panel. My nVidia driver is up to date, as well as GPU Tweak. I've reinstalled both, to no avail.

The strangest thing is, GPU-Z (A h/w info app that's built into GPU Tweak) knows exactly what card I have, along with all of the usual specs. I hear Afterburner is a good one but GPU Tweak (supplied with card) worked fine for me before, so ATM I just want to find out why it's not working properly anymore before I try alternatives.

Old rig:-
Asrock Conroe1333 mobo (standard BIOS)
Core 2 duo 3.0GHz
Asus GTX650 Ti Boost 2Gb GFX card
Win 7 64

New rig:-
Asrock Fatality Z170 gaming K4/D3 mobo (UEFI BIOS)
Skylake i5-6500 3.2GHz CPU (locked, non k)
Exact same GFX card
Exact same OS

Thanks to anyone who can shed some light!