RE: DF734FMC & VNAV
I recall that the Cold-Weather patch is included in the main DF734 download available from http://www.flight1.com
"As employees, pilots are a difficult lot. They are masters of their vessels, answerable to no one for as long as the engines are running. Airline presidents have the power to control entire fleets, to decide where and when every plane shall fly. But once those decisions are made, no one tells the pilot how, or even whether, to fly."
Commercial Pilot ASEL - Instrument Rated
Air Traffic Controller - Anchorage