Hello,I have just bought the PMDG 800/900 package and I tried to install the upgrade for the 800/900 version and I it did NOT work. The SW is asking me to install the Base Pack (600/700) first. Due to the fact that I have all my FS9 stuff on a seperate Drive (D:) I think the upgrade does not recognize it, that the base pack is already installed.HOW can I install the 800/900 upgrade on Drive D: ???Thanks for helping me out here.Cheers,Christian

Christian,I may not be of much help to you but I also (as, I think, a lot of people) have FS on a separate drive. You are experiencing some other problem. Possibly the registry entries for FS9 has been corrupt. THat has been seen to happen,I would suggest you mail [email protected] for some helpHope it helps,

Hello Mats,thanks for the input....How can I fix the FS9 registry? Do I need to reinstall the full blown FS9 (which means all the add-ons etc.) or is there an easier way.Thanks for letting me know.Cheers,Christian

Well..You can do what I do. If you feel comfortable with the file system in Windoze. - Rename your current FS9 folder to something else than default. - Install FS9. - Delete the FS9 folder just installed.- Rename your old FS9 folder to the default name again. You might want to save your FS9.cfg and some other stuff but that's no biggie.Good luck,