So, I had my mac mini on the tv in the living room for a few days, Had some friends over, we played some games, watched netflix, everything was good times. And now, on my Acer monitor, my Mac thinks it's a 4:3 monitor, when, just a few days ago, it was running perfect widescreen 1600x900. I use a minidisplay port to VGA. I reset the monitor, tried everything except updating to 10.8.4, which i'd prefer not to do.