Hello - I have FS9 and FS10 installed on my machine. I inadvertantly purchased the 747-400 for FS9 when I meant to buy the FSX version. I am currently waiting for a response and hopefully PMDG will take the FS9 back and let me buy the FSX version. I installed the FS9 744 and I cannot get the alt set, speed set, heading set, VS set to work except for down. I have the 737NG and the Beech 1900C. and neither of these have any problems. Am I doing something wrong? Does the 744 work differently? I have been trying to download the documentation but none of the downloads work either. I get a 401 error and it complains about address errors. The FS9 and FSX installs are fresh installs on a freshly reformatted drive. I have removed and reinstalled twice, redowloaded the 744 all with the same result. This is only a problem on the 747. It has been a frustrating re-entry into the Sim world. Please help if you have any ideas.ThanksLloyd