Question about Sony KP-43HT20 43" Rear Projection HDTV-Ready Television

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Blue and red color are off, picture is not clear

I moved my KP-43HT20 TV by few inches and after turning on, found the picture to be unclear. Looks like the red has shifted right of the blue color. I used Flash Focus button few times, during various times after turning the TV on, but of no use, no improvement. Sound is great. DVD also shows the same problem. So it isn't anything to do with Dish satellite system.
Is there any solution that one can try on his own before calling in the service technicians?
Please help!
- Sunny

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Sony Convergence

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