I have a Toshiba 21S04B and have noticed a very annoying fault with it. Bright colours on the screen, produce streaks across to the right hand side. These are especially noticeable when the picture is dark with bright patches, as the streaks obscure the view. I looked this up on the net, and saw it described as Harmonic Streaking. Does anybody know what causes it and if it's fixable, cos it's so annoying. Or should I just arrange for a replacement, I bought it from Comet Direct, but it is now out of the 28 day guaranteed return policy.