My monitors looks blue after instaling a video card?

Anyway I foound this nvidia geforce mx420 card so I install the driver and now my pc looks all blueish help?|||If you are using the 15 pin VGA connector (not DVI), examine the pins on the monitor cable. Sometimes pins can break off or get bent over, causing one of the Red, Green or Blue colors to not get displayed. Most of the time there is either a pin missing that controls this color, or there is a wire break in your VGA cable. In rare cases, there may be an issue where one of the RGB colors is not connecting on the video port of the video card, in which case you'd have to get a new card. Also check the obvious stuff like the color tempurature of your monitor using the on-screen-display.