Hi Guys I have a sony 1040QM when setting it up (i.e. convergening tubes etc) it is absolutely fine produncing an excellent image on the grid test screen. However as soon as i replace the top cover the red grid is pulled slightly to the left on the whole image. The top cover has no physical contact in any way with the red tube, it seems as if it has some sort of magnetic effect pulling the iamge over. The top cover has no after market additions in any way, so am completely stumped. Need the top cover off to adjust and converge the pj but need it on during operation due to fan noise and to protect it. I am pretty new with Crt pj's so maybe there is something i don't know about but any ideas would be very welcome.