I moved my computer to another room to paint the room - my son reconnected everything with no problem. I moved everything back. I cannot get my flatpanel monitor to work. I have to use my old behemoth monitor, and there is no room for it. I want to reconnect my Acer al2016w monitor. It was previously connected using a blue cable and an adapter - I think that is called a DVI to VGA adapter, or vice versa. I put the connecting cable back in the same spot, the blue DVI plug receptor thing. The Acer monitor is powered and I can access the menu screen. I says I have an analog signal. I have tried telling it analog or digital, and also choosing DDC/CI on or off. I don't know if my choices are saved. Anyway, I never see anything on the monitor past the opening "windows" on a black screen. I get either a dark screen or a whited-out and "twitchy" screen. What do I do to get this monitor going again? I was not aware of changing any settings in the process of moving, but I have repeatedly been in the Acer monitor setup menu since I had no proper connection.