I often download audiobooks from Midwest Collaberative for Library Services to OverDrive Media Console on lapbooks. But I recently bought an Acer netbook, thinking I could conveniently plug lightweight lapbook into car radio's aux input and play downloaded audiobooks through car radio. However, when trying to download audiobooks I always receive Error OxCOOD2781 – problem incurred retrieving Digital Rights Management machine identification.  Reinstalling WMP 11 is no help.  Get same message when I click on Tools>Media Player Security upgrade.  When I go to http:drmlicense.one.microsoft.com/indivsite the Security Upgrade key is "greyed out" and nonfunctional. Help!!!!!!!!! (The netbook uses XP SP3.)