Samsung LN46C630 thin vertical lines

Hi all,

I have a Samsung LN46C630 46" LCD 1080p TV (LN46C630K1FXZA - Model No) that is about 20 months old. I have been getting two thin/not so prominent vertical lines towards center of the screen (around 6 inch apart).One red and one green. I observed this behavior today. It is happening in all inputs like Cable, Blue-Ray player etc. It also happens in self diagnosis screen. I tried switching off the tv for couple of minutes but it did not help

Here is the image of the problem.If you observe carefully, there will be two vertical lines right at the center of the image

https://picasaweb.google.com/lh/photo/fCoRarXXvGQ9nUEeDOtJ5dMTjNZETYmyPJy0liipFm0?feat=directlink

I am going to create a service request for Samsung. But my warranty has expired.

I am really hoping this is a simple or at least cheap fix. Any help or input would be greatly appreciated!

Regards,
SB