Every time I try to join a server on the oilrig map, it starts to load but then the game either gives an error or freezes on me. Is there a solution to this problem?

Usually no error message at all, just a kind of freeze. I get in the 'choose team' page and it's like 1 Frame per 10 seconds. I have to alt tab out of the game when this happens. When I do get an error it says something about a DirectX unrecoverable error.

It's on automatic by default. Another curious thing: When I alt tab out of the game there are like 3 or 4 iw4m windows open in the task bar. Weird!

How much memory do you have? Oilrig effectively loads 2 maps at once, and it sounds like your RAM could be full.

3GB Ram. I have this problem with oilrig, burgertown and gulag. All the new maps basically.

I'm now using the latest version (r91) and the problem persists.