im sure its only because so much is going on at 1 time but about 3 hours into game on normal or round year 2000. my gam gets real slow and crashes.... is this a bug or am i just forced to play on smaller maps....

Is it still bad if you reboot your computer and reload the game? I have a fairly top of the line computer and I too noticed a slowdown after about 4-5 hours of playing. I think it's a memory leak.

if i reboot comp ill get more play out it it but it still goes bad in maybe 10 turns? i its a mem loss something needs to happen i want big maps lol

It sure acts like a memory leak...especially with huge map sizes, over time. Save often! At least until they can ID it and patch the culprit problem.