I recently purchased a Sony 28" Wega flatscreen CRT (KV28HX15), and although I am very pleased with it, I'm almost sure I can see very fine horizontal black lines spaced a millimetre apart running from the top to the bottom of the screen. Also, the picture looks ever so slightly 'jagged' at times as a result of these lines. Is this normal? This is the first time I've owned a pure flatscreen TV and maybe it just takes some getting used to. I'm sure my eyes will adapt if it is. Thanks.