Thanks Stan. You don't believe what I was gonna do to fix this. That worked. I appreciate it muchly.I would do a complete uninstall of Firefox http://support.mozilla.com/kb/Uninstalling+Firefox
Uninstall and delete C:\Documents and Settings\usename\Application Data\Mozilla\Firefox
and C:\Documents and Settings\usename\Local Settings\Application Data\Mozilla\Firefox
and C:\WINDOWS\Prefetch\FIREFOX* files.
and the other folders mentioned in that link.
Then try to reinstall.