MBP and LED Cinema Display Color Washed Out After Screen Saver

When coming out of screen saver, often the color profile on either my LED Cinema Display or the MBP LCD is messed up. The color looks washed out. Simply going to the Color tab in the Displays preference pane fixes this.
How do I get this to stop?
Thanks,
Bobby

My 13" MBP has now started to do the same thing as described. The thing is, it has never done this since I bought it in late July 2009. I have iWork installed, Firefox, Skype, and Pixelmator. I may have a clue, however, for the Apple people: my MBP never did this until last night and this morning. The only thing I changed yesterday was removing the 2 gig of memory and installing 4 gig. I also tried the translation widget for the first time.

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