BUILTIN\Administrators not recognized - rsUnknownUserName

Hello all,

We recently moved our Team Foundation Server from one server to another, of course the reporting services was also included in that move.

On the new server, we are not able to change Reporting Services security parameters anymore, we get this error :
User or group ? BUILTIN\Administrators not recognized. (rsUnknownUserName)

The old server was an english windows 2003, the new one a french version, i guess the problem is related. The BUILTIN\Administrators group name on the new server is "BUILTIN\Administrateurs".

Is there a way to change security params without getting this error ? How can we remove from Reporting Services this reference to BUILDTIN\Administrators ? I've tried to modify the table Users directly in ReportServer DB without any success..

Please help !
Alexandre

Ok I was finally able to solve the problem ! I connected to my Reporting Services server using SQL Server Management Studio and not Reporting Services administration website. In the root folder permissions, I removed the reference to BUILTIN\Administrators and added the one to BUILTIN\Administrateurs, and it worked !

Alexandre