This is a driver I found for my Compaq Presario V400 monitor although it does have many other drivers. Open the *.exe install it then reboot, Windows will detect an unknown monitor and built a driver database. After Widows finishes loading right click on the desktop and open properties goto the settings tab were it lists unkown monitor click change. Scroll down the list of manufactuters and select Compaq. Scroll down through the monitors box and select the Presario MV400 (If that is your monitor of course.) click ok and wait a minute. Thats it hope you don't have trouble.