Picked this up during the summer wallet rape and have played through the SP with no problems but multiplayer is a different story. I get hard lockups that require a PC reboot to fix.
I have been through a number of longwinded fixes under the assumption that it's punkbuster at fault. Nothing has cured the issue though. I have yet to try games on a non PB server so that's my next step to narrow this down but wondered if anybody else suffered from this and managed to cure it?
Win7 64, Radeon HD5800 (for what it's worth)