Having installed BI, I tried to start an R:TW 1.3 campaign as Armenia. I edited descr_strat.txt to make Armenia playable, and it shows up on the faction selection screen, but when I click on it I get a CTD. This also happens with Thrace, Numidia and Scythia, all factions I've played with before 1.3.

At first I thought it might be due to some modifications I've made to descr_strat.txt and export_descr_unit.txt, but restoring backups of these didn't help. (Obviously I had to modify the descr_strat backup to make Armenia playable, but other than that they were untouched).

It doesn't seem to be a problem with the factions themselves, as these all function perfectly well under AI control when I launch a campaign as another faction. It happens immediately I click on their icons on the faction selection screen, which made me think it might be something to do with not being able to display a map/leader pic/description for the faction.

Does anyone else have this problem? Or do I need a re-install?