Extreme flickering and screen tearing in levels

[Cobalt0305]

So, I got a new computer and decided to try out GZDoom, since it didn't work on my old PC. However, as soon as I booted it up, the menu seemed a bit odd. So I pressed on into a level and there was so much flickering and missing textures it was completely unplayable. Any help? My msinfo and dxdiag are attached.

[Graf Zahl]

First make sure that your driver is really up to date. I have gotten a similar report about a year ago for comparable hardware, but that person never reported back after making the same suggestion. I have no information if he was able to solve it.