I'm using it via steam and the message says: "*** Unhandled Exception! ExpCode: 0xC0000005 Expflags: 0 ExpAddress: 0x00000000 Please report"

Not sure on the version but steam says the current BuildID is 454337.

Hi all, I love the game I really do, but I keep getting this error no matter what I do. But it always appear to occur when a unit attacks either my own or the AI. Can someone please help with this problem so I can actually complete the first Act and not having to keep starting over again due to this...