I just tried to fly from KPHX to KABQ (after a long period of not using FSX-SE), and when I tried to put in the REF. airport (KPHX) I received a "airport not in database" message. I tried various airports and received the same message. The only difference between now and the last time I flew, is I installed FS9 to try some of the CalClassics sceneries, but could not get it to work so I uninstalled FS9. Any thoughts or suggestions? Is it possible I screwed something up by installing/uninstalling FS9? Any help would be appreciated, thanks.

Ed Henry 

You had FSX and FS9 installed at the same time?  Interesting.  Should not have bothered the NGX..., make sure you have a PMDG\SIDSTARS folder and in that folder you can find KPHX.txt file. Also make sure you have a PMDG\NAVDATA folder and there are several files in that folder.

Thanks Dan. Problem fixed when I updated the NAVDATA.

Ed Henry