Random Crashes To Desktop

While playing the game I have random crashes to desktop. Its immpossible (as far as I can tell) to reproduce the crashes and the game leaves not dump file so I can't report it that way. I've tried fiddling with the settings in various ways (at one point I thought anti-aliasing may have been the problem but apparently not) and nothing seems to have helped.

One thing that I have noticed about the crashes are that they also cause Steam to have to crash and restart so they may be related to that.

I never have any problems in the game aside from the crashes so I'm not sure if its hardware related but my specs are:

Intel Core i3 Processor 550

3 Gigabyte DDR3 RAM

Windows 7

NVidia GeForce 315

Also, the crashes only began at the start of Beta 2 so that may also be related.

Aside from that I'm loving the game so far so I can't wait to fix the annoying crashes.