/me sighes - again.
Look, it's a beta game, beta games, or beta anything software wise, will, at some point, crash your computer. Fact of life, u don't like it, wait until release FFS.
I mean signing up for beta, do you remember clcking accept to that thing that said I will tell Sony baout bugs that i find? well the crash is a bug, tell em, they really do want to know so people don't have to suffer the same problems after release!!!!!!!!!!