Are you using Microsoft Windows XP?
Then, you are recommended to download the latest service pack for your Windows XP.
How to obtain the latest Windows XP service pack: http://support.microsoft.com/kb/322389/
Release notes for Windows XP Service Pack 3: http://support.microsoft.com/kb/936929
Windows XP Service Pack 3 Network Installation Package for IT Professionals and Developers: http://www.microsoft.com/downloads/details.aspx?FamilyId=5B33B5A8-5E76-401F-BE08-1E1555D4F3D4&displaylang=en
