This problem has been fixed, and the Steam version updated already. For now the GOG and Anthology DVD version can be manually patched. I'm not sure if or when GOG is planning on an official patch, but it will eventually be packaged so the anthology auto-patcher can install it.
The updated files (div.exe, DivDialogSystem.dll, OsirisDLL.dll) can be downloaded from this
Dropbox page [EDIT link broken/expired] and placed in the 'Divine Divinity' install folder. You can click on each of the files to download them individually, or there is a button at the top of the page to download them as a zip file, or add to your own Dropbox account (if applicable).
Here is an alternate download, in a 7-Zip
.7z archive (915KB).
If you don't have an archive manager installed that can handle the .7z format (
7-Zip or other), simply rename the download with an .exe extension. It is a self extracting archive, but my ISP blocks executable files, so I had to rename it.