I HAVE A SIMILAR PROBLEM WITH THE 757-300 EXPANSION PACK. I HAVE INSTALLED 757-200 BASEPACK CAPTAIN 111 VERSION 1.404 AND IT IS WORKING PERFECTLY. (WIN 10 pc, P3DV4). I HAVE PURCHASED THE 757-300 EXPANSION PACK AND TRIED TO INSTALL BUT IT WILL NOT INSTALL SAYING 'OOPS PAGE NOT AVAILABLE THAT PAGE CANNOT BE FOUND....' CAN YOU HELP PLEASE. (ONE SOLUTION POSTED ON THE FORUM SUGGESTED TO DOWNLOAD/INSTALL THE V1.303 UPDATE FIRST AND THEN THE V1.404 UPDATE. CANNOT FIND THE V1.303 UPDATE ANYWHERE) REGARDS PETER LUFF