I currently have a three monitor setup. For some reason, one of my secondary monitors has a weird behavior that once I turn it off, it's still recognized by windows as being plugged in. This is annoying because windows remain open on the monitor and I can't access them. With my other secondary monitor, whenever I turn it on/off my screen flashes and the windows hardware disconnect/connection sound occurs whereas this doesn't happen with my other monitor. Any ideas how I can sort this issue out? I've tried using DDU but that made no difference.