I just bought a 27" Toshiba flat screen (model #27AF41) and it's an awesome TV except.... ... The geometry on the top left and right of the screen is messed up. Any vertical line has somewhat of a squiggle to it because it messes them up. Is there anything I can do without taking it back? I don't want to have to do that because I know I'll just get another one like it (since it is a very common problem). Any help would be very appreciated.