Right ive disconnected my main monitor and ran the game on just the second one and i noticed that my frame rate was significantly higher that what it was when playing on my main. I played on the secondary display for around an hour and a half and nothing happened and no lockups. I plugged in my main one again to compare frame rates and i was getting around 50 compared to the 70 on the secondary screen. I am gonna plug my main back in and try to crash the game again as i now feel this could be a problem with the monitior.