My iMac is a few years old now and I'm having a pixel problem. There's a blue line running down the left side of my screen. How do I fix this? Also, there's random dark spots (Not dirt, I've cleaned the screen plenty) that I'm not sure how they got there or how to get them off. Any help would be appreciated. Here's a link of a pic I took (http://i39.tinypic.com/f4gwmb.jpg) of what I'm talking about. The dark spots are to the left of the Apple wallpaper logo and bottom left of the blue pixel line.