I am using the Toshiba laptop and under that I have installed the windows 7. I am using the TOSHIBA 40FT1U TV on mine system. Form last one week I have small issue on mine TOSHIBA 40FT1U T. on mine TV there is thin Black Line appears on the screen and it was so irritating me. Mine TV is 3 month old. Now I donít what to do, can anyone suggest on this and so that I can solve mine issue. Please help me out from this.