i have a 17" monitor with vertical colored lines going across the entire screen. not sure what is wrong or if it is fixable. screen worked great one day and did not the next. it is a Hyundai Imagequest L70S. i have disconnected from the tower, swapped cables, power cords, and plugged into power outlet with no source and still get the same screen so it is the monitor. i unplugged and left off for 2 days "hoping" it would work again, but no luck. Any thoughts as to what this could be? thanks in advance.