Bad Stutter/Lag

[Dread+MarKana]

Try using the driver that was given in the cd along with the video card.

[Seventeen]

I don't think I still have that CD.

[Dread+MarKana]

your problem is because of wrong driver installation for the video card. Its not easy to fix until you have the specific driver for your card. Try to search for the cd and try installing that.

[E]x[F-Sniper]

Hmm... what OS are you running?

[Seventeen]

Windows XP 32bit, and I'm using the card drivers from the nvidia site, If anything I think the updated drivers would help more than the old CD ones. Also, yet again, no other game lags like AMRTS does. Games that take a lot less (Starcraft, Tron) and games that take a lot more (Fallout 3, Oblivion, Assassin's Creed) doesn't have this happen to them.

[E]x[F-Sniper]

and you said you have reinstalled the game before? Deleting all files in the 3DO folder.

[Seventeen]

Deleted it all, including the registry.

[E]x[F-Sniper]

I'm running out of ideas here..

[fez]

dude i think its the 32-bit. same thing happen to me but when i changed the 32-bit to 16 it was working well.

[Dread+MarKana]

Yes try different resolution in the game video properties