My aircraft.cfg don't have light.12 in lights section :( this is my air crafts light section :Boeing 737-800 [LIGHTS] //Types: 1=beacon, 2=strobe, 3=navigation, 4=cockpit, 5=landinglight.0 = 3, -24.20, -56.60, 3.90, fx_navredm ,light.1 = 3, -24.20, 56.60, 3.90, fx_navgrem ,light.2 = 2, -71.32, 0.00, 5.92, fx_strobeh ,light.3 = 2, -25.00, -57.20, 4.20, fx_strobe ,light.4 = 2, -25.00, 57.20, 4.20, fx_strobe ,light.5 = 2, -7.55, 0.00, -5.50, fx_beaconb ,light.6 = 1, 2.00, 0.00, 8.70, fx_beaconh ,//light.7 = 4, 47.60, 0.00, 3.00, fx_vclighth ,light.8 = 3, -29.50, -56.60, 3.70, fx_navwhih ,light.9 = 3, -29.50, 56.60, 3.70, fx_navwhih ,Boeing 747-400[LIGHTS]//Types: 1=beacon, 2=strobe, 3=navigation, 4=cockpit, 5=landing light.1 = 3, -223.85, 0.00, 8.85, fx_navwhih ,light.2 = 2, -228.97, 0.00, 44.62, fx_strobeh ,light.3 = 1, -45.05, 0.00, 15.65, fx_beaconh ,light.4 = 1, -80.22, 0.00, -11.05, fx_beaconb ,light.5 = 4, -18.24, 0.00, 11.19, fx_vclighth,Bombardier_CRJ_700[LIGHTS]//Types: 1=beacon, 2=strobe, 3=navigation, 4=cockpit, 5=landinglight.0 = 3, -64.70, -37.00, -0.50, fx_navredm ,light.1 = 3, -64.70, 37.00, -0.50, fx_navgrem ,light.2 = 3, -104.63, 0.00, 14.30, fx_navwhi ,light.3 = 1, -29.00, 0.00, -2.30, fx_beaconb ,light.4 = 2, -104.63, 0.00, 15.00, fx_strobe ,light.5 = 1, -32.50, 0.00, 7.00, fx_beaconh ,//light.6 = 4, -10.00, 0.00, 3.90, fx_vclighth,light.7 = 2, -64.50, -36.50, -0.50, fx_strobe ,light.8 = 2, -64.50, 36.50, -0.50, fx_strobe ,Now what we can do..?waiting for your reply