I don't usually post in this forum, but I thought I should post in this thread to help you.
Do NOT bother to try to fix those hard lock ups.
It is nothing to do with your graphic cards, neither with your Drivers.
It happens both in Nvidia and ATI, but mainly in ATI with the 6000 series cards.
Here are hundreds of people complaining about it:
http://forum.ea.com/eaforum/posts/list/5401851.page
As you see, it mainly happens to people who use Punkbuster + 6000 series cards + Monitoring program (MSI Afterburner, TRixxx, EVGA Precission, GPU-Z...).
If you have any of those, close it, and try to play again, hard lock ups SHOULD dissapear (I say should, because they do not seem to help the issue for some people, but most people get this fixed by just closing those programs).
So yeah, don't blame the 11.4 Preview drivers, not their fault, it is completely Punkbuster's fault, it all started on Wednesday 9th March when Punkbuster released an update.
Many people are complaining about it, but Punkbuster didnt release any fix yet, so the only "fix" we have is to close MSI Afterburner (Or Whatever you're using for a custom fan profile or OSD monitoring) and enjoy the game.
So yeah, I hope I was able to help you.
Bookmarks