Greetings all. Tried posting over on the Steam forums, but no helpful replies yet. Giving TF2 some play time since it's now free. I can play for 5-6 minutes, then it crashes HARD. Screen freezes, sound becomes one continuous tone, etc. I can force quit and the type of error it generates is always a 'hang'. I have a MBP 13" i7, 4GB, Intel HD 3000 running 10.6.8. Thanks in advance.