update your direct x to the latest version.http://www.microsoft.com/downloads/en/resultsForProduct.aspx?displaylang=en&productID=9C954C37-1ED1-4846-8A7D-85FC422D1388
DirectX Redist (June 2010) get this
DirectX End-User Runtime and this
do not download individual dll files as it is potentially dangerous. 1s you run both of the above your direct x should install all the missing dll's ....