Cause: Internet Explorer 5.5 SP 2 and later versions no longer support Netscape-type plug-ins such as QuickTime and now require an ActiveX control.

Solution: Download and install the ActiveX version of the QuickTime plug-in from Apple Computer. You can check your QuickTime installation to make sure you have the correct configuration for your browser by opening http://www.apple.com/quicktime/download/qtcheck/index.html.

There is no "main installer" or setup program for General Chemistry Multimedia Problems. To use the CD, all you need is QuickTime and compatible version of an Internet browser such as Netscape Navigator or Microsoft Internet Explorer. QuickTime installers are provided the CD.