Thank you for the fast answer!

I uploaded the crashdump files of the last 3 freezes (all in less than 1 hour!).
But I only have 2 files (rpt + bidmp), there are no mdmp files. (?)

Please fix this terrible problem as soon as possible!
Every 20-30 min freeze, I can't play in this way. :-(

And I'm not alone with this prob......

Yesterday Steam was loading the update, after that I could play 20-30 min. and then the game was freezed.
After restart it was the same, 20-30 min. later freezed (without crash-message.)