I get a popup message that says a person wants to add me to their contact list. When I click block it comes back and says they cannot be blocked. I know these requests are from people that used these email addresses in the past but do not use them now. What's up with this? I have windows xp.

Hi, After checking the issue, it seems this is a general Windows XP related issue. As this forum focuses on Windows Vista specific issues, this inquiry would best be posted to Windows XP forum: http://social.technet.microsoft.com/Forums/en-US/itproxpsp/threads The reason why we recommend posting appropriately is you will get the most qualified pool of respondents, and other partners who read the forums regularly can either share their knowledge or learn from your interaction with us. Thank you for your understanding.Please remember to click Mark as Answer on the post that helps you, and to click Unmark as Answer if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread.