Anyone else see this? Not drastic but about 1/2 inch bow in from top to middle when in 4:3 mode. Service is replacing set, but on another forum I was told that this is a consistant issue, and replacement won't solve problem. I love the HD PQ on this set, but now that I have noticed the pincushion, I can't seem to disregard it. LCD or LCoS have this problem? I could get a 61" JVC or Sony LCD for the price paid for the 56" Samsung.