I consistently get an issue in tactical combat where if either the attacker or defender is mounted, it takes 5 or 6 seconds to 'free up' the game, by which I mean it partially freezes: you can click on and change units and see their move highlighted area, but you can't actually do anything because the previous attack has not completed. So if for example my infantryman strikes at an enemy cavalryman, I strike as normal, and then the cavalryman does nothing for a few seconds, and it appears control has been returned to me, but I can't actually execute any actions. Then, he will do his attack and the game returns to normal (dying animations seem to cause the same problem).

http://dl.dropbox.com/u/8733908/DxDiag.txt

http://dl.dropbox.com/u/8733908/Elemental1_07-2010-09-04T14-35-18-593.zip