I fail to understand your explanation. Why would the car loose drive without VC action if everything else is working fine in drivetrain?
You are 100% right with broken driveshaft of course, but if all shafts and diffs are OK VC is not required to have drive. I know it from experience too - mine VC was totally and completly dead whenI bought the car, I also experienced it on other Escos with failed VC - absolutly no locking action in centre diff but those drove fine.
Marco - I never ment any offence I think you misunderstood me.