GD DAY ALL,AFTER FEW SECOND ALL EICAS CRT DISPLAY TURNE BLACK.I AM USING 747 UNDER VISTA TKS IN ADVANCE FOR YOUR ASSISTANCEROBERTO AEROSERVICE //OSE396

Please don't SHOUT...Roberto, blank displays are (almost) always an authenication problem. Give pmdg support an email with your order id and name and they will sort it out. Make sure you get an automatic response from them to ensure you have two way communications.