Nagashiro

Hi all, I'm new to this forum and I have already a problem to be solve
I explain myself: two days ago I decide to install BWP Tactic with BWS-20120907 that I found on Kerzenburg site. The installation was fine, so yesterday I began to play it.
My problem: in the second area, where Gorion dies, game crashes with only the Windows message "Shadow of Amn-Throne of Bhaal stops working". I checked the Baldur ERR and here it is :
My Weidu.log is attached.
My specs are: Windows 7 64 bit, antivirus Windows Essentials. If you need the other specs of my pc tell me and I will give you them (even if I don't think is too old to run it ).
Hope someone can give me some good tips. Thanks for any helps you can give me.

EDIT - sorry for my bad English..