Internet Explorer for Windows
Go to the Tools menu in IE and choose Internet Options.
Next click the Security tab.
Make sure the Internet Zone is highlighted and press the Custom Level button to open the security options.
Look for the entry near the bottom of the list which says Scripting, then Active Scripting and make sure 'enabled' is the option selected under Active Scripting.
Press OK to close the panels. Now try selecting another link to video or audio from the site.
If you are told you don't have permission to make
these changes, contact your computer's administrator, or technical support.
Internet Explorer for Mac
Find the Preferences option on the Explorer menu. Select the Web Content bullet from the list on the left hand side of the window.
Find the Active Content section. Make sure that the checkbox next to Enable Scripting is checked.
To enable Java, click the Java link in the Web Content section.
Safari for Mac
In Safari, go to the Safari menu and choose Preferences.
Click the Security tab.
Firefox users should go to the Tools menu and select Options.