[Suicide Junkie]

Q) Have you saved your game during play?
Q) Can you reproduce the problem?

If you've had the game running for 100 turns in a row, it is possible that memory leaks have killed it.

Use one of the saves from your freezing games if possible, and as you play, save regularily.
If you can get to a point where the AI will consistently freeze on the next one or two turns, even after closing and reloading SE4, post it, and we will find you an answer.

For now, do you have any details, such as:
- Which TDM race freezes?
- Which techs are available at the time of the freeze?
- Any unique game settings or events?