Hi all, i have PMDG 747 Registered for FS2004 and i'd like to know whats the correct procedure to upgrade it for FSX.Best regardsRicardo

Hi Ricardo,The 747X for FSX is not an upgrade to the 744 for FS9. There was an introductory rebate for owners of the FS9 version all mailed out to the mail address in your account when the FSX version was released. This rebate period ended in Dec 31 2007 IIRC.You need to buy the 744X to install on FSX system. WIth it comes a unifier which will upgrade your FS9 with most new functionality from the FSX version.Hope it helps,

Thank you MatsRegardsRicardo

Just a question, but I bought the FS9 QOS this afternoon. Do I get the unifier? Thanks,David