I am running Windows XP SP2, having removed SP3 after major problems. Now I am being requested to download and install Windows Installer 3.1. It appears to download OK, and very nearly installs. I am then told that "Windows Installer 3.1 did not Install". I am being requested to restart the computer in order to complete the installation, but even after restart ,Windows Installer refuses to install. Can anyone help? Ken Smart.