I can't start some of the activities. I use a Macintosh. My browser is Internet Explorer.

1. Connect to the Internet.
2. Click here to download Netscape Navigator 4.7.
3. Restart the CD-ROM once you have downloaded Netscape Navigator.
4. Make sure that you use Netscape Navigator and not Internet Explorer every time you start the CD-ROM. If Netscape Navigator is not your default browser, you will need to open it from the Start menu before starting the CD-ROM.