Mkay, i got Halo for PC, and im LOVING IT

But it has a problem since i downloaded the new patch (2.05, or something like that). I have been playing it for about and hour and a half, and twice, during multiplayer, a window suddenly pops up titles "Exception". It then says Halo has a problem, report it? etc... It says Gathering Exception Data in the exception window. Then this Excpetion window closes and quits, and so does Halo.

Its been running great till after i installed the patch