so i was at my buddies house to check out his 1292 that the green tube appeared to not be working..... anyway the tube lights up at the base (all 3) so i assume its the signal going to the tube. there are short verythin "ribbon" cables. do these transmt the signal to the tube? could it be that the board that attatces to the other end of the connectors (assuming its the video driver boards) be bad? red and green are on one then they are connected with a removable cable header to the blue board. any help greatly appreciated 
-eric
-eric