I have a Sony 42" LCD that I've had for 1.5 years with no problems at all. Yesterday when I turned it on, the power/standby light blinked a lot longer than usual and the picture comes on with vertical colored stripes. The picture is bright and has very distinct colors that repeat across, but I cannot do anything. Cannot change input, channel, nothing. I can turn it on and off. Does anyone have any suggestions how to fix this and/or what the problem might be?