just got a brand new GPU, AMD RX 6600 and now classic wont boot up. just goes to a black screen and i have to shut it off. retail works just fine, as does WOTLK. and D3 and a bunch of steam games. it worked fine with my old card a few hours ago and thats the only change i made
Might try leaving it open for ~5 minutes and see if it’s just building a shader cache. Common issue with AMD cards and WoW. I’ve had to do it for my 6700 XT and 7900 XT, but they’ve been stable otherwise (retail, anyway).
i ended up doing that and it worked!