Can't declare war on anyone without a crash...

1760, dutch, vh/vh, i have sledged my way through battle after battle to take control of south america, western europe and the seas, i fielded the first 1st rate, i'm 3rd in prestige, I pull 60k per turn, and all i need to win are the india regions and french guyuna. If I declare war on anyone game crash. It can be through diplomacy, through invasion, or through reverse diplomacy in between turns....game crash. I even tried breaking all 12 of my alliances before declaring war...game crash. I also tried goating the french to the point that they declare war on me....game crash. I'm totally into this game, loved it. worked around all the gay little bugs and now i can't win on a campaign i've been playing for two weeks...game crash. Awesome