I have a mid 2011 Mac Mini and have been using the DVI to HDMI connector for my monitor. I recently got a 2nd monitor and bought a VGA to Mini Displayport connector. I connected the 2nd monitor and nothing happened. I then tried the same monitor with the same connector on my Macbook Air and the monitor instantly was recognized. So I don't know if there is a problem with the Mac Mini or if I am missing something. I would appreciate anyone's help!