Well the only bug that I have that I didn't spot in the first 6 pages is this.
The on screen menu buttons for character inventory, journal, map, save, and all those others located at the top crashes whenever I click on one. I bypassed this by having them hidden and using the hotkeys. These buttons work fine once inside the gui environment of the various menu's it's only in the active game itself.
And before anybody suggests this.
When I first got the game I uninstalled and reinstalled 4 times with the same results I even tried different HD installs as well as the slowest graphics settings as well as the fastest settings. Mind you I can run with every graphics setting boosted all the way.
I don't have an ATI card before anybody asks or suggests this.