Okay, seems that my D3D driver is out of order. I tried to test D3D in DX Diagnostics, and all i get is a warning that i have cancelled the test by a keypressing. Which i have of course not.
But DX installer tells me that i have newest DX and has no posibility to install DX again. And i cannot find a way to uninstall DX neither.
Any ideas how to proceed? I would be happy for any hint.