my glareshield is malfunctioning. backround lighting are all ok. capt efis panel controls do nothing. all other knobs make other things work . the f/o panel works ok except #1 adf selector switch. glareshield i/o test shows: output group 4 48-63 nothing works at all. input state all green and true. display test all 8's present except nothing shows in capt altimeter window. dont know what other information you need (p3dv4.5 / profiler v 5.1.40.1000. fsl h/i v1.0.1.109. will you please help?