Hi,
As your issue is related to Windows XP, I suggest discussing it in our Windows XP Service Pack 3 (SP3) forum or Windows XP newsgroup:
Windows XP Service Pack 3 (SP3) forum:
http://social.technet.microsoft.com/Forums/en-US/itproxpsp/threads
Windows XP newsgroup:
http://www.microsoft.com/windowsxp/expertzone/newsgroups/reader.mspx
I hope your issue can be resolved soon.
Tim Quan - MSFT