Windows 7 provides you with a Display Colour Calibration Wizard, that helps you set up your computers brightness, gamma, contrast & colour settings easily.
To access it, type DCCW in start search and hit enter.
This will open the Display Colour Calibration window.
Now you have to simply follow the wizard and click ‘next’ to get the best settings for your computer.
The wizard will guide you to set color, gamma, brightness, contrast, color balance and also make the text on your screen easier to read.
Do use it if you havent yet done so!