Set up an ICC profile
1. An ICC profile (named after the International Color Consortium) defines the colours your monitor can display. You need to install a profile created for your specific monitor. There may be one on the driver disc it came with, or a web search may turn one up.
2. If a profile isn't available, devise one yourself. First, set the gamma level. This is the relationship between a video input signal and a display's luminance. Most software (including Windows) uses a gamma of 2.2. You can set gamma with a program such as QuickGamma.
3. Set your monitor's contrast to maximum and adjust the brightness until you can only just distinguish the black bar 'A' at the 2.2 level. Set the gamma levels for the three colours to 2.20. Click 'Set Current Gamma as QuickGammaLoader Default Gamma' and tick 'Run QuickGammaLoader at Windows Startup'.