I just purchased this game, played a few minutes then changed my resolution from 4k to 2k because I am experiencing some lag. After I clicked apply settings/accept the screen just went black but the sounds can still be heard. I forced closed the app then try plaing again but it still gave me the blank screen w/ music (the mouse cursor changes by the way so I know Im in the game) I uninstalled it then reinstalled but same thing happens. Pls. help. Thanks!