After I started X, the display was shifted by a few pixels to the right. Switching to the analog input and back again solved the problem.
The desktop looks sharper. Text may actually look worse. I've been fiddling a bit with the sharpness setting and too-sharp is definitely bad, but the setting above "too fuzzy" looks a little worse than I'm used to as well. But, analog input had occasional artifacts (shadows at the end of text lines) which are now gone. It may be that my fonts are just crappy and now I'm actually seeing them. ;)
Anybody have a really simple guide for color calibration they'd like to share?