XP SP2 is flawed, I have sevral computers at different locations, that re not communicating and some not connecting to the network domain any more.
Wireless networking in a peer to peer environment is almost impossible, especially if you share an internet connection.
NetSpy cafe management software from Cyberage Systems, identifies XP SP2 as a definite no if you currently plan to use their software, it dows not even allow their software to install.
Remote installation of software is not functioning.
And the list goes on.
Dont use it unless you are in the cutting edge of technology and do not require to use software like Norton's Antivirus and NetSpy.
Did I mention that Norton's Antivirus 2004 Professional does not update the Application module due to SP2. Also you will notice a major slow down of your system, if NAV2004 is installed.
Best shot wait for the next release of XP SP2x which should address these problems.