Sony Wega 57'' Projection Screen?

Hi I have a Sony Wega 57'' screen I bought it 11 months ago and now, it has a faint vertical blue line in the screen.

Any ideas how to remove it without calling the repairman.

Thanks for all the help you can supply me.

Answer:
you are still under warranty so better contact sony support. make sure that you are not being charged for anything.

p.s. if repairman comes in and there is no problem then you'll have to pay sony wont pay to the repairman.
1 year warranty from sony, get it checked out ASAP.

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