What ISP are you using? If you're on AOL, CompuServe, or the newest Yahoo one, they all use a version of Internet Explorer that has been created to non-standard specifications set by the them. If this pertains to you, go to the section of your Control Panel where you set internet options. Look for the "Web" options page and set the default browser to a plain vanilla version of IE. It should already by loaded as part of your Windows operating system. Changing this won't effect your usual web activities, but it will allow you to access the HTML files for Help and Tutorials.
If this doesn't help, please repost before calling Adobe.