If you notice display errors in the game like artifacts, missing textures, discoloration, or blinking screens, follow the steps below to resolve the issue.
Overclocked Video Cards
Video cards modified to run at a higher clock speed, either by the user or the manufacturer, are not supported and may cause issues in StarCraft II and Heroes of the Storm. If you want to revert your video card settings, please contact your card's manufacturer for assistance before doing so.
Note: Factory overclocked cards may use terms like "Superclocked", "Turbo", or "Supercharged".
Tried everything here?
If you have tried all of the steps for your operating system and still require assistance, please visit our Technical Support Forums (World of Warcraft) (StarCraft II) (Diablo III) (Hearthstone) (Heroes of the Storm) or contact us.