You cannot use Windows Media Center together with ATI All-In-Wonder video cards in Windows Vista

In Windows Vista, you cannot use Windows Media Center together with ATI All-In-Wonder video cards.

Note The ATI All-In-Wonder video cards work fine as TV tuners and as graphics cards when you do not use Windows Media Center.

This behavior is by design.

For more information, click the following article number to view the article in the Microsoft Knowledge Base:
The third-party products that this article discusses are manufactured by companies that are independent of Microsoft. Microsoft makes no warranty, implied or otherwise, about the performance or reliability of these products.