I have 2 27" fs120's which is the newer version of the fs100. Try adjusting vertical and horizontal. If that don't work it might just be your picture tube. That would cost as much as a new TV. I only paid $198 each from 6th ave electronics in New Jersey, Walmart sells it for about $298. Normally sonys are great tvs but they do have picture tube problems after 5 years and one day right after the extended 5 year warantee expires. A tv repairman might charge $125 for the picture tube and $50 labor if it is that much consider a new tv.