I've been having the ping problem, even running as Admin in Win 7 64. I just did the PB update, so we'll see how much things have smoothed out when I log in later tonight.
This game really is a blast, though. The problems may set off the occasional bout of nerd rage, but I'm willing to deal with it in order to play. I'll be rather grumpy if things haven't settled down somewhat by this weekend, though.