Did you check Nvidia's site for drivers? There was a
release for your chipset two months ago, which may be newer than the laptop manufacturer's last update, if that is what you are using.
Try running the game as administrator, and in the compatibility options disable desktop composition (in Vista/7).
Did you try changing the texture quality setting, etc?
Did you double check the graphicoptions.xml file to make sure it listed the game at the same resolution as your desktop? That is the procedure given in the DKS
Support FAQ, anyway (quoted in the spoiler).
27/ Characters and assets are transparent and/or assets look like shadows
Problem
Characters and assets are transparent and/or assets look like shadows
Solution
Quit the game. Look for this file:
Windows Vista and Windows 7: C:\Users\[WindowsUser]\AppData\Local\Divinity 2\Profile\graphicoptions.xml
Windows XP: C:\Documents And Settings\[WindowsUser]\Local Settings\Application Data\Divinity 2\Profile\graphicoptions.xml
If you cannot find the files, make hidden files visible.
Right-click the file and choose Edit, or open the file in a text editor like Notepad.
Change the resolution manually to reflect the native resolution of your screen.
E.g. ScreenWidth="1440" ScreenHeight="900"
E.g. ScreenWidth="1280" ScreenHeight="1024"
E.g. ScreenWidth="1600" ScreenHeight="1200"
It seems you've already search the forum and found topics with similar problems, like
Everything is transparent ...
Try emailing support@larian.com, with a description of the problem and perhaps a link to this post. Maybe include the report from dxdiag and Larian's
support tool.