Yes, I thought that Arma 3 was an evolution from Arma 2, and not a step back. My mistake.

It seems I have solved the problem upgrading the BIOS from Gigabyte web
site.
http://www.gigabyte.com/support-downloads/download-center.aspx?ck=2

Thanks for all.

DX11 error : buffer Map failed : DXGI_ERROR_DEVICE_REMOVED

Any solution?.

Still happens in full release

I have uploaded the correct folder now, I was using Arma 3 Alpha and not Arma 3.

Some more info. I am using Track IR. After Arma 3 Crashes, Track IR program also hangs, and says:

"The NVIDIA OpenGL driver detected a problem with the display driver and is unable to continue. The aplication must close.

Error code: 3"

After that, I have to restart Trak IR program.

I have uploaded the files in 7z format. I hope this helps