After upgrading from AM4 to AM5, I only changed the CPU and RAM, but now Dawn of War 2 won't run. When I launch it, the screen goes black, and the game becomes unresponsive. I can't interact with the window or close it. I have to send the game to Desktop 2, return to the main screen, and manually click "Exit Game" to close it. Chaos Rising has the same issue, but Soulstorm works perfectly fine.

What kind of bug is this? Any solutions?