Severe gradient issues / problems with darker grays

I have a Dell M992 CRT monitor and just this morning when I turned on my monitor I noticed something odd. In bitmap images (regardless of format) all my greens / grays are a darker purple color. images don't show up properly (most are in some random collection of purple tones. I checked a gradient test image to see what was up, and I noticed that the white to black gradients go from white to purple to black. I looked into it and apparently this happens to a lot of flatscreen monitors... but not always to CRT. So I'm confused. Do I have to get a replacement or is there someway to correct this with software? I might also add that video games show up fine. I played Half-Life 2 and there were no color issues. I'm pretty damn confused.