This thread finally gave the the confidence to go ahead and install XP SP2. Ugh ... so very typical of Microsoft. It ruined my internet connectivity not by virtue of security settings (which are easily managed anyway,) but by uninstalling my Ethernet NIC! Just amazing. Obviously I got it figured out and fixed, but that sort of thing would have seriously frustrated someone who doesn't understand such things ... which would be most Windows users. (Not condescending, it's just a fact.) Anyway, I did a couple of super-quickie renders in Poser and haven't noticed any new functionality issues, but frankly, I can't really see how SP2 would affect Poser per se.