Instructions:
In PS CS3,
1)On the top tool bar click Edit >> Color Settings
2) In the Color Settings popup window,
a) the Settings should be "North America General Purpose 2"
b) Working Space/RGB should be "sRGB IEC61966-2.1"
c) CMYK: U.S.Web Coated (SWOP) v2
Have a try and see if it's helpful. Gook luck!