[cctalk] Another 780 backplane story

Jon Elson's take hits home. A 780 was delivered and VMS was running. We installed 4.1BSD and it ran fine until it crashed. Field service insisted we needed a full set of RS-232 wires in our cable. Still crashed (surprise!). Switched to VMS, still crashed after a while. Local field service couldn't find it. The big guns flew in from Maynard. First day: Couldn't find it. Second day: "What, what's that wire doing there? Have a wire-wrap tool?". Removed wire from backplane. Boots, runs. Engineer flies home.