[NEED HELP] video glitches in netradiant on windows 10

Hi, I am running Windows 10x64 with an Nvidia 980Ti and I am getting this strange white block in netradiant
has anyone got any idea or suggestions on how to address this strange glitch? perhaps I need to recompile netradiant or is there some seeting I need to change with my video driver?
I am using default settings on my nvidia video drivers 376.53 x64 Win10

If you have an intel GPU along with the NVIDIA one, try forcing the intel GPU to run netradient, I solved my problem by doing that.

If that does not help you please take a look in this topic. You will find some alternative NetRadiant versions for Windows that did help me a lot with this problem some time ago.