Update: This issue has occured three more times today since making this post- greatly increasing the frequency of occurrence. The screen will flash white very rapidly, then return to normal.. lock for a second or two.. and then resume working fine, or go entirely black for a few seconds and return to normal. I've checked my drivers and they say they are up to date, my settings are all optimized. Not sure what I can do to resolve this issue but if it continues to become worse it will end up having me unsubbing before my paid time even begins. =(