Right drivers for mobility radeon hd 3400 for amnesia to work.

[AwesomeAssassin]

I have been playing amnesia, fantastic game but my friend has problems.
He could play amnesia with his hp dv6 (vista) until hdd failed.
He got windows 7, new hdd installed.
Problem is, with windows-downloaded drivers amnesia doesnt work(found it in hp.log- no driver installed), but with all other specific drivers amnesia works, but with specific drivers in many other games (battlefield heroes, world of tanks and company of heroes) there are polys missing.
Yesterday i screwed around 5 hours with drivers, could not find any which are able to play amnesia and other games correctly.
Please give me a link to mobility radeon hd 3400 driver link, which actually works.