I have just gotten used HP e223 monitor. Since it is supposed to be better and bigger than my current one that I use dor my desktop pc I have tried to set it up. What happens is when I turn on my pc first 5-10 seconds everything is normal but then just agter first screen (the one that has pc name and tells u how to enter BIOS) it goes black and says no input found. I have tried both hdmi and dp but same problem occurs on both. Any idea why this is happening?