when installing Microsoft SQL Server 2005 i get the following message "...the following components that you chose to install are already installed on the machine..." , im doing a typical installation.

I went to add/remove programs and uninstalled:
1. Microsoft SQL Server 2005
2. Microsoft SQL Server Management Studio Express
3. Microsoft SQL Server Native Client
4. Microsoft SQL Server Setup Support Files (English)
5. Microsoft SQL Server VSS Writer

restarted PC (XP Pro 2002 SP3), attempted to install, same message came up.

please assist ...