After playing for over a year the game has started to crash to desktop with no warning. Nothing else on mu computer seems to be having any issues. The graphics drivers are up to date and nothing else has changed. Apart from the game has patched itself. It is making it very difficult to play. Right in the middle of posting an in game cs it crashed.
Are there any debugging options I can switch on?
I have looked in the Windows event log and there is nothing.

Sorry but this is making it very frustrating to play.