OK heres what i found out so far from changing all the graphics around.
You can play on High Graphics till around Industrial Age, then change to Low Graphics and do the change as specified in this thread. (When playing a big mod or alot of civs)
Make sure you save game almost every turn, when i played at 2500 it would go to my mod, but when i tried to play, it went to a blank screen and i had to shut off my puter.
What i found out was my Desktop is set to 800X600. But when i placed it on 1024X768, BEFORE starting Civ4, it worked for a little while, but again save game almost every turn, it didnt clear the MAF problem, but at least when i got one i had a saved game. SO i could play like 15 turns before the next MAF.
Then at 2400 it didnt matter if i had changed the Desktop from 800 to 1024 or not, but still got MAFs more often.
Then at 2300 again found out you have to change your Desktop to 1024 again, otherwise, blank screen again. But i can play at least for another 15 turns, then MAF. So i guess i am just stuck with the MAF's????
I dont think i should go any lower, what do you'll think??
I hope i made this clear enough?