Warren,
I have XP Pro with SP-2 in this computer but IE-7 still had some kind of clash with my security suite. There was supposed to be a download patch for it but I just went back to IE-6 as I am tired of downloading patches to make everything new work with the older stuff and they seem to just create more problems in some cases. I am to old and tired to start trying to figure out just what is needed to make everything get along. I am starting to think the best computer repair tool is a sledge hammer.
Ron