I first experienced this problem Friday night while at home on my desktop. I immediately submitted a ticket at evenbalance.
I left home Saturday morning to visit family, and was looking forward to game on my laptop. To my surprise, I received the exact same ban on my laptop.
I submitted a ticket and gave them a listing of processes running in the background.
I really think this is a key ban since some have reported that by just changing the key solved the problem.
I have none of the same programs running on the laptop vs. the desktop. I'm at a loss on what to do and really don't want to spend another 50 bucks on another copy of the game so I can play. I'd like to solve this issue and determine what caused it in the first place so that it won't happen again if I do fork over more money for a new key.
Oh, one more issue. I play BF2 as well. If it was a driver issue, wouldn't PB catch that driver while playing BF2 as well? No errros when playing BF2.
I refuse to play on non-PB enabled servers because I seriously despise hacks and cheats. I'm seriously at a loss on what to do next. Submitted a ticket, now I suppose I'll just wait and request a scan tool like others have mentioned in this thread.