Assuming you use the latest Adobe Reader or Adobe Acrobat version, you may need to enable 3D in Preferences.
To go to preferences, click the menu button and select Preferences (or press Ctrl+K).
Once the preferences dialog box is displayed, choose the Multimedia & 3D category.
Ensure that Enable playing of Multimedia and 3D content is checked and also set the preferred renderer to be DirectX 9.
If you are unsure how to do this, please contact our technical support team. We will be happy to help.
