Until tonight i have had no problems whatsoever with crashing until embarking upon the starbase 24 indoor mission.
I have read a couple of other posts describing the problem being with certain particles and occuring in tight locations/hallways which also happens to me and seems that my ATI card (hd4780) is the problem.
Weird thing is that after the second time i crash my internet completely slows down to 0.6mbps according to speedtest. After a computer reboot interenet speed is back to normal (1.5mpbs) and i have since tested the problem further ending with six client crashes and my internet speed dropping back down every second crash after reboot.
*EDIT* turns out its because i was uploading the error report