Please help: Cheat detection problem

[Dogboy]

Thanks for the quick reply. I do not think any of us has installed a mod but I will ask my players to confirm. Any other possibilities? The .map file does indicate dom 2, but it was altered to work with Dom 3 (and I was able to play SP for a bit without triggering the problem). I do note that one of the 4 players does not show up as having "cheated". Could he be the cause, and if so, what could he have done wrong? (I'm sure we're all using different CD Keys).

Thanks again!
DB