Basically, the .exe for Civ 4, is formatted for an x86 system, which limits the application to 2 gb of memory. There was a way to reformat the application for 4 gb of memory by reformatting it for x64. So I was wondering if you had done that, because it doubles the memory.
No more about MAF´s on this thread but I answer for this.. I checked this and looks like that is already done in BTS exe. People use that trick back in warlords times according these forums.
@Louis the XIV Your colour mod is great, its was needed.. with 95 civs it was hard to find different colours