Hi all, I just updated fs9 with 9.1. Everything seems to be ok except When I fly the PMDG 747, the nav display is erroneous. It randomly swings and doesn't show any movement while flying.There is no way to navigate. I am running Vista 64 bit. Is there anyone who has experienced this after the update? or any ideas how to fix it? Doug Morlan :(

Hi all, I just updated fs9 with 9.1. Everything seems to be ok except When I fly the PMDG 747, the nav display is erroneous. It randomly swings and doesn't show any movement while flying.There is no way to navigate. I am running Vista 64 bit. Is there anyone who has experienced this after the update? or any ideas how to fix it? Doug Morlan :(

PMDG has a support forum that you should consult, I'm sure that they will be able to help there.

Try installing the lastest FSUIPC for FS9 from:http://www.schiratti.com/dowson.htmlOlder versions prior to the FS9.1 patch will not work. This can affect nav in your PMDG. In addition search in the post below the PMDG support forums here on AVSIM (both general and plane specific subforums) for any patches required. You can also search their support wiki here:http://ops.precisionmanuals.com/wiki/Main_PageIn addition, here is the link to the latest PMDG patches:http://precisionmanuals.com/priv/pages/down/updates.htmlBe sure you are running with admin rights as user and setup the FS folder and sub-folders security to allow access for all utilities using them.

You had PMDG B747 installed before you installed 9.1 patch for FS2004? If so, try reinstalling the 747.