While your OS might have DX 11 loaded the card is only DX 10 capable.As I stated before this really does not matter as Clod is only DX 10 at the moment.Fortunately DX versions are supposed to be backwards compatible.
I would check you config.ini for the render dx line and make sure it says d10_0(or something similar.I am doing this from memory).
If you can get into the bios and allocate as much ram to the video card that will help.
You might also reinstall the vb basic files and the dot fx(net framework) files that are in you redist folder in the main folder.I have read though where it is better to get the latest dotnet fx from the Microsoft site.
There are also several posts about getting laptops to run Clod.
However in the end it is my belief that your laptop is just under powered.
Here are the minimum specs.But most people feel these are too low in reality.
http://ubisoft.custhelp.com/app/answ...liffs-of-dover