I recently bought an S2716DG monitor around black Friday. It worked fine the first week and a half that I had it and was using it. After that period of time any time my computer would turn off display or go to sleep the monitor would go to Burn-In mode, which I found under the factory menu using Button 4. I turn off the mode and the screen goes black like it should. However each time I go into reset my color preferences / brightness levels and turn off burn in mode it resets itself if the computer goes to sleep or has the displays turned off. I have tried the methods in the troubleshooting page for the monitor but I cant seem to get the self test to appear it just keeps flashing the burn in colors. I have tried manually resetting to factory as well but that doesn't seem to help. Any suggestions would be appreciated. 

Thanks.