Abnormal Game Crash

[Ironluca]

Hello everybody, I have a peculiar problem while playing 7.62, there are abnormal & persistent crashes of the game while entering cities after accepting missions. The missions are side missions and I have to go back to some saved games to set the matter right. I have 40-50 saved games, I don't know whether that is causing the problem. The crash occurs arbitrarily & persistently during entering a particular city which has no link with the side mission. Can anyone help me resolve the matter.