CRASHES:

1. if crash on F1, then likely it's that the trainer overlay is causing issues trying to inject into the graphics pipeline of the game. Turn it off
2. crashes randomly: could be anything but likely you have used speed option, which the game itself doesn't like it if you speed up too much or for too long I guess. May also LOCK the game up. This happens also with CoSMOS or using Cosmos.
3. Crashes randomly may also be from Aurora hardware acceleration but that would be usually cause Aurora to lock up or crash too, but could crash the game.