File resource manager bug in Server 2008
There is a bug in Server 2008 (SBS 2008 as well) when you have enabled file resource manager. For instance if you have enabled it on the same disk volume as your Sysvol folder you are no longer able to save new GPO’e even though you haven’t made any restrictions for *.ini. You will get an error in the GPO Management console saying: “The data present in the reparse point buffer is invalid” Remove the role and reboot and your problem ill be fixed, I have heard that Microsoft is working on a hotfix for this.