nice game, but the crashes...

[climasecco]

hello, I've a problem (a lot of problem). the game crash every time, while I play it.
I don't find a conclusive solution and this situation is unacceptable. My dear Sid, I'm frustrated.
I pray you, help me.
Ah, the version of the game is the ultimate: 1.1. I've bought it from steam. My system: intel core 2 1.86ghz, 2 giga ram, ati radeon xt1950xt, windows xp 32 bit.
I'm sorry for my english...
thanks

[Warll]

Have you installed any custom maps?

[climasecco]

yes, today i have installed some custom maps, but the problem there is from first time which I have played it.

[Warll]

When does the map crash? Does it crash every time you do that?