Hi everyone,
I just bought ARMA 2 CO on steam a few days ago. Great game, no problems

, but...
Yesterday I started ARMA 2 OA, played for 20 minutes MP and freezed. So I did Alt-Ctrl-Delete and arrived at my desktop. Then I shut ARMA 2 OA down and I got the message: ARMA 2 Reinforcements has stopped working.
I only have ARMA 2 Combined Ops, and not Reinforcements.(Only lite version)
I reinstalled Arma 2 OA but got the same problem. I have Windows Vista32x.
Don't know the specs, but I can play the game on high settings pretty good.
And I have the latest update installed.
I'm not using any mods.
Don't know what's wrong with it, and can't find the problem on internet.
Sorry for the bad English, I'm Dutch

Please help me!
