I have two phillips monitors. The main one is connected by HDMI and the scnd is connected by VGA. Almost every time I turn on my pc, the main monitor has a blue tint to it. The same monitor gets the same blue ting when the screen updates, either if it is a driver update or a fullscreen game launching. I am sure it has nothing to to with the cable as i've tried switching it out. The temporary fix i use every single time is launching "calibrate screen colors" (I think that is what it is called, I had to translate it), clicking "next" and then the colors reverse. This is only temporary though.