I have a HDMI to VGA connection from my laptop to my external monitor. Some updates came through on the laptop, and now the monitor says there is no connection to the laptop. I replace the HDMI to VGA thinking it went out. No change, monitor still says no connection to computer. Do I need to turn on something in my laptop? Could the updates have done something to the connection? I have power to the monitor, just cannot get it to recognize the computer connection.