Trainz 22 is on special at Trainzportal.com, and as far as I can tell, the base version of Trainz 22 that I bought includes the Orbost line. 21.98 instead of 102.12

I won't need to use this version until my Trainz Plus subscription runs out.

Also bought DB BR 101 for 21.71 instead of 29.50 and Linke Rheinstrecke for 35.10 instead of 58.50

Installed Brighton Main Line (London Commuter) 700 class timetable enhancement version 1.052 but it won't load the 700 - might be a different version. Reverted to version 1.051 which works.

Played around with my memory on Bradgamer with a view to upgrading. On returning one stick to it's original slot, computer would not boot. Had to restore factory settings to boot. Then activated XMP to get faster memory than 2100MHz, and also enabled Intel fast save (or similar) in basic UEFI menu.