i have installed the pmdg 737 ngx and the 8900 update but when i load up the aircraft none of the buttons in the cockpit are clickable and nothing will work. very annoying and disappointing but is there anything i can do?
Post the question on their Facebook page, they should either answer it or tell you were to get help.
I had the same issue with the Feel There ERJ series. Spent hours searching the internet, and couldn't find a solution. I just installed FS X service pack 1 and service pack 2 and that fixed it!
here's the link