In the U.S. (I think in Canada too), you have a 2 year warranty. If I remember correctly, this model started shipping in February 2005 in the U.S., so you should be covered under warranty. Even if you purchased the set used, you should be able to get it covered without a receipt based on the manufacturing date being within 2 years.
If the lines extend from the top all the way to the bottom of the screen, it is likely a defective panel. If they only extend halfway down, it is a failure on a circuit board.
Robert
If the lines extend from the top all the way to the bottom of the screen, it is likely a defective panel. If they only extend halfway down, it is a failure on a circuit board.
Robert