Some game settings are incompatible with your graphics card or monitor, which can cause crashes or poor game performance. Reset your game settings in the Battle.net Desktop App.
- Open the Battle.net Desktop App.
- Click the cogwheel next to the Play button and select Game Settings.
- Find the game you are having trouble with in the list and click Reset In-Game Options.
- Click Reset.
- Click Done, then relaunch the game.