I have the following error showing up in the group policy results of my systems. I have found other forums that lead me to believe that it is related to using the preferences to populate the local admins group with a domain account. Based off of the observed results, it appears that it successfully populates the group so I don't think this is an error related to the policy taking effect. Bottom line I want to be able to clean up this error and keep it from reappearing but I don't know how to go about that. Here are the details of the error.

Log Name: Application
Source: Group Policy Local Users and Groups
Date: 4/13/2011 9:39:39 AM
Event ID: 8194
Task Category: (2)
Level: Error
Keywords: Classic
User: SYSTEM
Computer: <mycomputer>
Description:
The client-side extension could not remove computer policy settings for '<policy name> {55F346A9-F4D7-41F7-A84A-51FE57E67860}' because it failed with error code '0x8007000d The data is invalid.' See trace file for more details.
Event Xml:
<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
<System>
<Provider Name="Group Policy Local Users and Groups" />
<EventID Qualifiers="34305">8194</EventID>
<Level>2</Level>
<Task>2</Task>
<Keywords>0x80000000000000</Keywords>
<TimeCreated SystemTime="2011-04-13T14:39:39.000000000Z" />
<EventRecordID>34872</EventRecordID>
<Channel>Application</Channel>
<Computer>xxxxxxxxxxx</Computer>
<Security UserID="S-1-5-18" />
</System>
<EventData>
<Data>remove</Data>
<Data>computer</Data>
<Data><policy name> {55F346A9-F4D7-41F7-A84A-51FE57E67860}</Data>
<Data>0x8007000d The data is invalid.</Data>
</EventData>
</Event>