Hi there,Just re-installed FSX after complete OS re-install (don't ask) and everything works fine apart from missing displays in the PMDG 747.Sound is fine, everything works, but no PFD or ND or anything else for that matter, just black. All other aircraft work fine, including add-ons.Any ideas?Thanks,Paul

Just first time or everytime?If you have already tried to restart FSX and reload 747X and still have dark displays then you have an authenication problem. An email to pmdg support is next, be sure you get an automated response to verify two way communications.