Hi,

When does the freeze occur?
After you have played the dragon part or right after the Talana dialog?

If after the dragon part, a movie is supposed to play, which could hint at a codec issue.
Restoring Direct3D codecs can be done with this tool: http://www.softella.com/dsfm/index.en.htm

In the troubleshoot tab there is an option to restore Direct3D Codecs.

http://www.facebook.com/dragoncommander
http://www.facebook.com/DivinityOriginalSin
http://www.youtube.com/larianstudios