I've not had my new LED monitor long it was all ok to begin with but recently fuzzy lines have started to appear on the screen and then yesterday it started flashing on & off which was quite bad..Microsoft installed the latest navidia graphics driver so I don't think it's that that or is it lol.I've tried fiddling with the vga cable and it comes alright for a while then happens again..Gutted plz some advise me as to what it could be