audiohavoc wrote on Dec 3^rd, 2009 at 4:24pm:

Does anyone else with v4.4 have trouble with the autothrottle speed management when VNAV is engaged?  On my first flight, I had programmed a flight plan in the FMC, I engaged the flight directors, autothrottle, LNAV, VNAV, autopilot CMD, and the autopilot did not take over the speed of the aircraft.  Usually with VNAV engaged, the speed window of the autopilot is blank and speed is managed by the aircraft, but I had to manually enter speed values during this flight.

that happened to me on my first flight too
i cant use it because of that so im going back to 4.3