HI GUYSAM NEW TO THE FORUM DOWNLOADED THE PMDG B747 AND IT LOOKS NICE, BUT WHEN I START FSX IT CRASHES GIVING ME AN OUT OF MEMORY OR AN ERRORO MSG AND THAT DOESNT OCCUR WITH MY OTHER AIRCRAFTS LIKE CAPTIN 757I DIDCLEAN MY LAPTOPI RE-INSTALLED PMDGI EVEN REINSTALLED FSXMY LAP TOP IS SONY VAIO WITH 400 GB AND 4GB RAMAND IT IS NEWANY HELP PLEASE PLEASE