ReportServer intengration error - An attempt has been made to use a data extension 'ADS'

For a moment I thought I had the perfect SharePoint 2010 installation going until I went and created an Access Database site added some data then went to reports. I am getting the following error.

An error has occurred during report processing. (rsProcessingAborted)
An attempt has been made to use a data extension 'ADS' that is either not registered for this report server or is not supported in this edition of Reporting Services. (rsDataExtensionNotFound) 

Other than that, life is good. I have pretty much uninstalled and stuff repeatedly. I'm about to do another uninstall, reinstall because Monitorying isn't showing any errors. Which it should be, but that's another post; should the issue return.

But if anybody has any ideas about the ADS thing I would sure like to hear it.

Thanks!

Oh, the system is the following:
  Server 2008 R2 Standard
  SQL Server 2008 R2
  SharePoint 2010 Release with 2010 October CU updates. I ran the CUs just before running SharePoint Configuration.

At the moment it is all house on the same machine; but if it goes to production then it will be turned in to a two-tier system.