My 1Z3 has not crashed to desktop yet. But only froze and not responded! So i had to Ctr + Alt + Del to shut it down! I believe 1Z4 should be the one that push us forward to Beta 2!

Are you getting any more turns after the re-install. I noted your .err file listed only 23 turn before the crash. I have been crashing as well but have seen games up to 460, then it won't reload.

Your machine seems Robust enough. I run a Quad Core 2.5ghz as well. Just upped to 5GB's on board.

I still suspect memory as the culprit though. 1Z4 may be the ticket as it is a 2 week spacing.

My display drivers are up-to-date.  ("Update your drivers" is the last gasp of the desperate support person.) 

My computer is equipped with middle-of-the-road, fairly vanilla, garden-variety hardware and software; not particularly high-end but definitely not obsolete or under-powered.  (see the dxdiag).  If others with similar set-ups have crashes I think that there is some more essential issues.  I have no problems with a wide assortment of other games and programs.

Still hoping the next update gets this fixed.

I use the free version of drivermax to check what drivers need updating.  It's not perfect or the easiest to use, but it works ok for me.