Mark Sirota , Apr 16, 2008; 10:43 a.m.
Do the colors outside the image area look correct (neutral) in Lightroom? For example, if you convert to grayscale, does the histogram look gray, or does it have a color cast?
If so, you've got a corrupt monitor profile. Lightroom apparently exposes these more readily than Photoshop for some reason.
If not, I have no other guess at the moment.