Consider the following scenario. There is a scheduled Live Meeting that has PowerPoint slides uploaded in Microsoft Office Live Meeting 2007. You start the Live Meeting 2007 console to join the Live Meeting in an environment that has Office 2010 installed. Then, you record the Live Meeting. In this scenario, the voice of the Live Meeting is recorded but not the PowerPoint slides.
To fix this problem, install the following cumulative update:
2433231 Description of the update package for the Windows-based Live Meeting 2007 client: November 2010
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.