I hope i'm wrong, but you probably in the same boat as most people with Laptop video cards that aren't high endd gaming laptop's.
In otherwords, the video card will ONLY support manufacturers video drivers. I ahve the same problem with my Dell Latitude and have to wait months and months before new drivers are released by Dell, not that it really concerns me, as it's not a gaming machine, but its annoying that most laptop manufacturers do this. I suppose its to limit the ammount of support calls they must get from dodgy drivers and stuff, but oh well
Sorry I can't be more help than that, the only way people seem to get later drivers on laptops like ours is to switch to linux and use custom ones...