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VIEWSONIC MONITOR WORKS WITH LABPTOP NO ISSUES... HOOK UP TO NVR AND IT BOOTS WITH HIKVISIONS BACKGROUND BUT BLUE BOX FLASHES UP SUGGESTING CHANGE RESOLUTION TO 1680x1050 THEN MONITOR GOES BLACK. HOW CAN I CHANGE ANYTHING IF SCREEN GOES BLANK....IT IS READABLE AND CLEAR BUT THEN GOES BLANK...