Messed up fonts on Mavericks retina Macbook Pro secondary monitor Just got my first Mac and am loving it except for the extremely annoying fact that fonts get messed up on my secondary monitor. 

The strange thing is that when I drag a window over from my laptop monitor, the fonts look fine on the secondary monitor until I finish dragging, then they get all messed up... some kind of driver issue?

Here's some samples. In both images the left hand side shows how the image looks on my secondary monitor while it's in the process of being dragged over from my laptop monitor, and the right hand side shows how it looks after I drop it:




Any ideas what the hell is going on here? I've tried changing the font smoothing with defaults write -g AppleFontSmoothing -int &lt;1-3&gt;, no dice.
You're moving from a retina display to a non-retina display, which changes how things are rendered.

If you didn't have this issue pre-Mavericks, it might have to do with the new "Displays have separate Spaces" setting. Try disabling this in System Preferences => Mission Control.