its your security software mate. i had the same issue with zone-alarm once i disabled it trainer started working fine.
Just tested the trainer, also makes the game crash.
[Edited by thunderhill, 8/29/2014 4:56:59 AM]
Are you positive you don't still have some component of your AV still running? Real Time Scanning maybe?
Even if not, there's been no recent update to the game on Steam. No game changes according to Steam's Product Updates.
[Edited by element5, 8/29/2014 6:33:16 AM]
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