For some reason the whole game is darker now. Settings on PC and Game settings are the same as they've always been, but now the game is darker and every 7-10 seconds it'll flash brightly for a split second. Now sure whats changed or why this is happening now. I've moved my Overall Gamma to near max just to have a visible game play experience.
Before splurging on a new card, check the support area for the brand of graphic card that you have, see if they recently released updated drivers. You might need to update if yours is older or roll back to a previous version if a new wonky driver is the issue. Good Luck!