same here, i think the game does a DRM check with all the memory address associated with the game on 68th turn, if you try loading a earlier save and turn off the trainer then you will not have this problem, but the drm thing is pretty annoying especially for those of us who actually bought the legit copy....
mine was only 41th turn.. or rather the start of 42th.. i really dont want to start all over again :/
deactivating the trainer, atleast from the autosave did nothing.. but i do have a that research option used on my research.. and since its my last research i cant really switch it to a non-hacked tech
oh well..