It seems that one of the other computers has had Trojan.Crypt Redol since about Noon on Sunday, July 12.
The fight is on.
Figured out that something was up when I saw that the computer had been downloading at least 51 megs per hour 24/7 since then. (BitMeter2 bandwidth tracking software
http://codebox.org.uk/controller?page=bitmeter2)
Wish us luck in this epic fight!