Abe, it may not have been your LCD. I would check the inverter. It is the inverter that produces the high voltage that makes the tube glow. It is possible to check the inverter with a multimeter, just remember that is does supply a high voltage, somewhere around 500-700V. It is not to expensive and you can find a service manual that would work for your laptop [http://support.dell.com/support/edocs/systems/1535/en/SM/index.htm|right here.] Hope this helps, good luck.