What color temp setting are you using on the monitor? I recommend using sRGB and then set the brightness on the monitor between 20-40 (higher if you use it in a bright room). You need to adjust contrast and gamma via your video card control panel. In both cases, I needed to lower gamma and contrast a bit to bring out more shadow detail in games and images. Use this site as a guide to help you:
http://www.lagom.nl/lcd-test/
Thanks for the reply, I'll give it a try. BTW I was using sRGB then followed the spyders recommendation of doing it under the monitors reset, which defaults to 6500.