I’ve been having the issue too only my screen doesn’t flicker, it just goes straight to black seconds after loading my character and my monitor reports it has no signal. Unlike the other folks in this thread, I’m using a desktop running Windows 7 with a i7-4790K CPU, 16 GB of RAM, and a GTX 980 with driver version 362.00.
Given all the recent problems with Nvidia’s drivers I’m about ready to switch to AMD.
Here is my DXDIAG file: