What? I thought they were ironed out! Honest, I didn't have any trouble at all. (Cross fingers)
They probably have. We have our computers at work updated quarterly, and the last time they were there, they suggested to hold off. But that was about a quarter of a year ago, so it probably is fine, especially since you have seen no problem. Is your anti-virus program updating correctly? If not, it probably is the SP2 firewall. Just check it.
Also, do you have Home or Pro at home?