This Yahoo! answers question pretty much sums up my predicament. Unfortunately I haven't really found an actual answer. Here's a screen shot of what happens when I place Photoshop between my monitors. Imagine that the left side of my laptop is the right square and the yellow is the right side of my monitor. When I move the program to one side fully or the other, it takes on the corresponding color.

Obviously the color on the right is correct and Photoshop is changing the color of the image when it moves to my external monitor. Also notice how none of the tools or anything are different colors, just the actual image itself.

How do I fix this?

EDIT

You may also notice that the color palette in the left corner is showing that yellow tinge. I didn't actually pick that yellow color, it's supposed to be showing the grey on the left that I used to fill in the square.