An update then punk buster continually kicking me meant no luck for me last night.
Have no idea ref PB?? All up to date.
Could it be that I do not have either Origin or BF3 on the main drive?
I was getting that at one point, tried everything reinstalled PB, manually updated the files, reinstalled the browser plugin and nothing worked. Until I rebooted my machine then it just worked. I spent about an hour trying to sort it before I did the reboot. I was not a happy bunny at my own stupidity.
So I cant be sure what actually fixed it but if its still not working you can try getting a copy of one of our working PB directories and using that.