I get this error in the application log of Windows Vista PC's
The client-side extension could not log RSoP data because it failed with error code '0x8004401e <unknown-message-text>
In the system log I get this:
Windows could not record the Resultant Set of Policy (RSoP) information for the Group Policy extension <Group Policy Drive Maps>. Group Policy settings successfully applied to the computer or user; however, management tools may not report accurately.
It clearly has to do with GPO Preferences from SBS 2008 server, but the policies are applied OK.