Good news, I tried civ4 with my 4 years old machine. here is my machine's spec CPU: 1.2G ATHlon RAM: 368M Video card: Sis730, with 16M shared memory. Free HD: 3G O.S.: windows XP, sp2 1st, I tried tutorial and I see Sid's instroduction, but all slow. So I goto advanced, put low graphics..Try to start a new game...all seems fine, but dropped me off before enterring the new world.. Try pre-build world, earth.. I could log in, slow.. but playable.. Until I met with Ghangis Khan. The leader head in the diplomacy windows was messed up.. have to restart..meanwhile, maybe after this, I get the render error message. Then I looked at the files sizes of the pre-build worlds. battle is smallest. But I can't enter it either. I end-up start a new game with planet... I played till 1000BC.. I was in a lonely island, and did not see anyone, but beast and barbarians.. Get my 1st great scientist... yea!!