Where does it crash exactly (during main menu, loading, during gameplay?). And do you get some kind of error message? What operating system do you have? Also: What programs do you have running in the background? (press ctrl-alt-del to find out). Did you manage to run the games start-up test without any problems?
Anyway, without all that info, the best guess I can give is that your laptop doesn't have a decent 3D card. I'm not sure what the radeon igp 320m is, but I don't think it meets the required standard that is needed to play DB, but I could be wrong.
Generally, laptops don't play 3D games all that well. (Beyond Divinity uses 3D models) A decent gaming laptop can easily cost you $2000-$3000, whilst $700 is often enough to get a decent gaming PC.
Tovi 
