Upgrading is when you go from a previous version to a newer version. When you upgrade Windows 98 to Windows XP it's called upgrading and that could cause the problems you've mentioned. On the other hand, if you do a clean install you eliminate some room for error. By doing a clean install, you choose to format the hard drive partition currently running Windows 98 and replace it with Windows XP. No remnants of your old system will exist and you'll lose all saved data.
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The Queen of DaniWeb
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