If people are having crashing or graphical problems and are running Windows Vista or Windows 7 and the above tips don't help there are a couple of things you can do that may help. You set the compatibility modes "Run as Administrator" and "Disable Desktop Composition" and hopefully that will help.
Instructions
Right-click on the Divinity II: Ego Draconis icon on your desktop
Click on Properties in the menu that pops up
In the Window that comes up click on the Compatibility tab at the top of the Window
On the Compatibility tab click the box next to "Disable Desktop Composition"
(For Vista and Windows 7 users) Also click on the box next to "Run as Administrator"
After that click on the Apply button at the bottom and you are done.
PS. On my gamerunning as administrator allowed missing resolutions and character creation options to reappear. (I was able to go above 1280x768)