Hate to be the first with bad news about the new Beta, but all previous versions of Sins were rock solid stable for me, and Beta 2 crashes within 3-5 minutes of starting a game every time now. I haven't timed it, but it's pretty much clockwork. Colonize the first planet, BAM!! CTD. Doesn't happen with any specific event though, it happened once when I was manually forcing a colony ship to colonize the planet, and other times I wasn't even looking in the system. Was playing as Advent each time. Also, if I keep saving the game constantly, I can load and play for another couple of minutes before it crashes.
Is this an intervention bug to keep me for playing it for 8 hours???? lol 
This is my first post for this Beta, what more information do you guys need? Is there a log or dump file to post?
System specs are:
Gateway P7811FX Laptop (http://support.gateway.com/s/Mobile/2008/GodzillaFX/1015641R/1015641Rsp2.shtml)
Vista x64