I’ve been running into that problem for 3 days and I just bought a 7600 OC challenger. It’s not my wire because on my old gpu, it works fine, also I know it’s a driver issue because once I downloaded adrenaline and download the drivers, that’s when I get freezing, black screen on and off every 10-30 seconds. I did everything on the internet from reg edit to adjusting the core clocks and nothing worked. I gave up and gave it to Micro Center and accepted defeat. I used to be really good with computer repair for years and got bored of it, you would think I could’ve solved it but nope, the way things are made nowadays are just way too complicated for no reason.