Hi folks. A long time ago I picked up a wireless xbox 360 controller from goodwill for cheap. (Don't have a 360 but I bought the wireless PC adapter for it, guess I thought I'd play some Halo on the computer or something.) Turns out the left trigger (LT) does not work. Everything else works fine. Wondering if it's worth finding a screwdriver bit long enough to open it up and try to fix, or should I just get rid of it? If I try to fix it, anything in particular I should be looking for? TIA.