It is possible that the reason Speech-Over is not showing on the menu is that PowerPoint 2007 has disabled the Speech-Over add-in.
The add-in needs to be enabled. The following procedure may help:
The procedure is located at:
http://msdn.microsoft.com/en-us/library/ms268871.aspxThere are actually two alternate procedures, depending on whether the add-in is soft or hard disabled. Please try each and see if one works.
Procedure 1. To re-enable an add-in that has been hard disabled by Excel 2007, PowerPoint 2007, or Word 2007
1. In the application, click the Microsoft Office Button .
2. Click the ApplicationName Options button.
3. In the categories pane, click Add-ins.
4. In the details pane, locate the add-in in the Disabled Application Add-ins list. The Name column specifies the name of the assembly, and the Location column specifies the full path of the application manifest.
5. In the Manage box, click Disabled Items, and then click Go.
6. Select the add-in and click Enable.
7. Click Close.
or
Procedure 2. To re-enable an add-in that has been soft disabled by Excel 2007, PowerPoint 2007, or Word 2007
1. In the application, click the Microsoft Office Button .
2. Click the ApplicationName Options button.
3. In the categories pane, click Add-ins.
4. In the details pane, locate the add-in in the Inactive Application Add-ins list. The Name column specifies the name of the assembly, and the Location column specifies the full path of the application manifest.
5. In the Manage box, click COM Add-ins, and then click Go.
6. In the COM Add-Ins dialog box, select the check box next to the disabled add-in.
7. Click OK.
Joel