Continuing adventures with VTServer

After another list member kindly patched VTserver.c and recompiled, data would come out on COM2: ok but it still couldn't "hear" the received characters. You won't believe this... the pigtail cable inside the PC, from the motherboard COM2 header to the back-panel DB25, had been installed one position off (by me, of course) =:^O The nonstandard location of TxD and ground on the DB25 should have been my first clue, but I just ass-umed that it was something unique to the PC and not EIA RS-232... I couldn't see any visible damage to the COM2 ribbon cable, but the proof of the pudding was a successful loopback test using a jumper to connect straight to the header pins :) After carefully examining and continuity-checking the pigtail, the inescapable conclusion was that I must have incorrectly plugged it into the header. Sure enough, with proper installation, data comes and goes as ordered. And on the proper pins 2 and 3, also! Recall that, again rather unbelievably, when I first resurrected this old PC from the scrap heap, I found that a mouse had eaten the mouse port cable (not joking) inside the case, but the other ribbon cable pigtail for COM1. Probably I plugged it back in wrong when reinstalling them both. Oh well, live and learn. Now if I could only get TSX-Plus 6.50 to sysgen properly on SIMH, I would have something to VTserve to my PDP-11! -Charles