After uninstalling Adobe Master Collection CS4 the colors in images displayed inside Windows photo viewer and Photoshop were colored different (and incorrectly so) from what was showing on our website and in windows explorer. Turns out the uninstall of the creative suite had reset the color profiles on my monitors.
To fix this, go to (In Windows 7)...
Control Panel - > Color Management -> Profiles
select...
"Use my settings for this device" (for each monitor attached to your computer)
Under profiles select...
Add
Experiment with different profiles, but I found that the generic sRBG WCS profile "sRGB virtual device model profile" produced acceptable results.
Enjoy.