After several basic troubleshooting efforts including uninstall wow and all of blizzard, disabling several startup programs and processes, etc., even resetting my entire computer I still get a flashing white screen on launch.
The music plays in the background, and the screen turns white and flashes quickly, as if trying to launch over and over again.
All of these things have worked intermittently, but never twice in a row.
PS. Other games such as Starcraft 2 work, as well as non-blizzard games such as Balder’s Gate 3.