My brother in law was watching his set and one moment the blue color shifted to the left.

When I go to the Convergence 2 option, you can easily see how the blue is shifted. I am unable to align the blue using any options in the menus.

http://img80.imageshack.us/img80/9125/dscf3250ij0.jpg

Any idea what part this might need for a self repair? Should he loook into repairing this or would the cost be high enough that he might aswell get a new one?

You could search this forum http://www.avsforum.com/avs-vb/search.php?searchid=12071931 or just look in my signature

Thanks for the link, it'll get me going.