Hang up

I have a Problem:
When I send a Message to another Empire into The Alliance Chamber, it depend on what message exactly I use, the game hang up a diplay the follow message: "Access violation at address 006ff07d in module "Se5.exe" read of adress 00000010" the address would be different and the read also, but the message is allways the same. The rest of the game look works fine.
I was playing a standard game in the Eurpean retail version updated until 1.66 version.
How can i fix that?
Thanks you.
And Happy New Year!!