My KV36FS70 has just ran out of its 5 year Guarentee period and has developed a ghosting vertical line about 3" wide that runs from left to right at about a frequency of 1hz. This is present no matter what we are watching Terestrial TV, digital TV, DVD. present on all inputs. It appears to be getting progressively worse, but this might be because I am watching it now. Any Ideas?