I had been using an MSI 24-inch monitor for almost a year now with no issues, connected to my GPU via DisplayPort. There have been no issues until just now, when my monitor completely turned off and I can't turn it back on. I had a USB hub connected to my monitor eever since I got it (4 slots) and it's worked the whole time, I tried plugging in a USB cable into the USB hub and before it even connected the monitor just completel powered off. The computer works fine, but I don't know what's happened to the monitor. Is it dead? How can I tell?