Both Windows XP and the Mac OS X systems offer simple built-in methods for checking your monitor. However, these basic tools do not offer the significant calibration that's possible with various monitor calibration systems which can be purchased separately.
The following steps illustrate how to perform very basic monitor calibration. Advanced users are recommended to look into high-end calibration systems for greater color control.
If you work in a Windows environment and install Adobe Photoshop Elements or similar software, the software will automatically install Adobe Gamma control panel documentation. Open this file and calibrate your monitor to eliminate its unique color differences.