I got this monitor today. It's got vga hdmi and dvi but for now I'm only using VGA...and no response. I've tried the 360 via vga, and the laptop via vga out, nothing. Black screen, eventhough the LED light is at times green. Sometimes I get a purple screen when first turned on..then constant black. I donno what I could be doing wrong here. I've installed drivers for the laptop and have chose to screen both laptop and monitor, but to no effect. Anyone familiar with this?