Dell S2340M Monitor Burn In On Left Side, Every-Other-Line Discoloration, and Overall Discoloration after 8 months

Hey, I have a Dell S2340M Monitor which I got for christmas and I started having problems with it a few weeks ago.

There is some Burn In on the left side of the monitor which continues even after the VGA cable connecting the monitor to the computer is disconnected.

Examples of Burn In:

http://imgur.com/IoeYKgd http://imgur.com/IoeYKgd http://imgur.com/Jz59idA

In the examples you can see in the top left a URL bar from the Chrome Browser and in the bottom left some HUD from the game Team Fortress 2 as well as a "Skial.com" watermark from a TF2 server.

Just a few hours ago the entire screen suddenly gained a deep cyan-green tint. 

Example of Discoloration:

http://imgur.com/k4ylunp

The example is a picture of my desktop. For comparison, this is my wallpaper: http://i5.minus.com/jf0eHV51rCQJN.png

There is also discoloration of pixels on every other line of the screen, which is too small to see in these examples. The very top line of pixels on the screen appear to be unaffected by the overall cyan-green tint though.

How may I go about getting a refund or replacement?