Hey guys, so I bought this Lancer 1250 about 4 years ago, and the touchscreen worked great for the first probably 2 years or so. Then one day just went kaput. I tried testing all the cables, voltages, etc, everything seemed fine. Replaced the 7805 regulator at the KTI board, no dice. I also had a large amount of corrosion at the bottom of the screen, since its not sealed to the casing, and got most of that cleaned out as well, still no go. So i went back to my usual ideas and tried to see if something on the board was hot, or internally shorted. I started with a can of duster spray since itll freeze parts, cover them in frost, and whichever one thaws first is the culprit. Well that worked, to a point. It would make the touchscreen work for maybe 15-20 seconds, then stop, without ever showing anything hotter than anything else, minus the 7805 regulator. So I tried to pinpoint it. Starting with general area, then narrowing it down with a frozen qtip, I found these 2 small black deals. when they are sprayed with compressed air or the duster, the KTI board works fine. as soon as i stop and they get "warm" it stops working. Strange thing is they dont get physically warm to the touch at all. I cant see the markings on them, and I cant tell what they are visually. Any ideas? Id love to ditch my mouse again and get back to touchscreen use. Thanks!!