Vertical lines more likely to be caused by bad T-CON board, you need to check the connections between the T-CON board and the main logic board, it can possibly be the main logic board also.
Please see my basic troubleshooting guide:
http://s807.photobucket.com/home/budm/allalbums
http://www.fixya.com/support/r5093881-lcd_flat_panel_tv_troubleshooting_guide
http://en.wikipedia.org/wiki/Capacitor_plague
Parts: try www.shopjimmy.com or Ebay
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My television is working fine but 1920 x 1080P will not work properly when I try to use this television as a PC monitor. I searched the Mitsubishi website for some kind of update, but found nothing.
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