ok, first of all to my defense i've opened and replaced thermal paste and cleaned the fan assembly on a bunch of laptops before and never had an issue until this Toshiba L355-S7905. After I cleaned it and put it back, there was no picture on screen but connecting external monitor worked fine, also the backlight works fine, so I figured I should just reseat the lcd cable behind the screen (how that got affected is beyond me since all I opened was the lower part of the laptop). Anyway I reseat it, still no picture. I then bought two cables on ebay and still no picture with either one of them. Did...