My panasonic plasma tv TH-42PX70B shows very thin vertical lines of various colours and also some white vertical lines about 5 inches in from the right hand edge as lookingat screen over a width of couple of inches.These are displayed on all inputs and als on teletext etc . is this repairable and if so what is the procedure some internet indicates that needs replacement panel and also some information indicating that it is a known manufacturing fault is this true and can I get replacement from Panasonic even although long past warranty as is now more than 5yrs old set.Any help appreciated