Sounds to me as if it might be something to do with the sound mod you have activated.
I might be wrong.
When the game CTD, and you get the error report.
View the details and copy them and then post them up here.
It would help the brainier people on the forum to help sort out your problem.
As for your Problem with the I.4 update im sure that the is someone around here that might be able to help you with that. So you can enjoy GWX.
