Images on my TV appear to be slightly shaking from side to side and if I look at the edges of objects, there appears to be a moving "zipper" running up the side. This is most noticeable with a still image such as a DVD menu with text i.e. the text appears to be moving slightly from side to side and looks like there is a zipper running up the letter. I don't know if the problem has always been there because it's not that noticeable while watching regular programming; I happened to notice it after I got the DVD player and was looking at the menus. Does this appear to be a problem with the TV or does it seem like interference/noise being picked up the connections? Thanks for any help.