1stcontact2035
Great Scientist
The CTD that comes late in game happens every game for me and my friends. Even if we play on standard size and only 10 civs. I will try another and see what happens then. But I am sure we got a mem leak of some sort.
My Computer isn't great my today's standards or really any standards, and I was running 35 or 36 Civs on Giant Earth Map, vassals of 25 or so of them, I personally had control of 30% of the planet and with the vassals make the 40%, and 300+ units for me alone. And then, only when I declared war with Rome, it crashed. Of course I had to minimize all the non-game stuff like graphics, etc, but still I was using "only" 1.6 GB of memory. Which, if you aren't running 64 bit, at that point long before that point you're no longer playing Civ 4. But I didn't click every option, only the ones I liked, I downgraded graphics and related play options severely so I could keep playing whenever I came to a CTD, and it kept me going to 150 turns. With you playing on standard size with 10 civs and this still happening, my first inkling is that you are running a 32 bit system. Or that you are running with all options on and might have graphics way too high. The graphics, I've found on mods like this, are only to be played on high settings if you have a beast of machine. Also, make sure you have a video card that can handle the graphics (not saying buy a video card, upgrade your computer, etc... seriously, to finish the game I mentioned I'd actually have to spend $200 on upgrading my memory but that's just not feasible the way things are right now, really if you haven't already, downgrade graphics settings, and I hate to mention if but if you aren't running a 64 bit OS you really should consider that, even if you are like me and running less than 4 GB of memory). If that didn't apply to you... hopefully the creator of the mod can help. I just thought I'd put my two cents worth in, but hopefully I wasn't too abrasive in doing so

Also, something I've been posting a lot of lately... if you've done all of that already... and you recently installed Windows 7 64 bit, double check your paging file size. If you didn't change it when you upgraded to Windows 7 it will be the same size as the amount of ram you have. In my case I needed to add nearly 1.5 GB to the thing and (I forgot) that was probably more the winning factor in buying me those 150 turns than anything.