DR 14 crashes when opening project

Hey everyone,

my new Video I/O is here and I'm happy. It works fine with Adobe Premiere Pro and After Effects. But since I've installed the drivers for the Card, DR crashes everytime I try to open a project. Even creating a new project causes a crash:
DR minimizes into the taskbar, when clicking somewhere on the Desktop, the Dsiplay turns black, few seconds later it becomes white and I get the Windows message "DaVinciResolve stopped working".

I got no clue what could be the problem, I searched the internet for answers and found an older post from last year, describing the same problem. But the workaround they found (switching CUDA to OpenCL) doesn't work for me.
I tried to reinstall DR, even the new DR15, but nothing changed.

My Setup is:

AMD Ryzen 5 1600
NVidia GeForce GTX 1060 6GB
16GB DDR4 RAM (Ballistix Sports)
ROG Strix B350-F Mainboard
and my new Video I/O: Intensity Pro 4k

Everything's got the newest drivers, those should not be the the problem...

Hope you can help me.. I need DR for a project the next days...

Thanks to all who try help me

Anyone got an Idea what could be the problem?
Or do you need further information about my system?