Hi ..
Have a very strange one that is a first for me - I have multiple domains .. I am currently updating login scripts <computer> portion of the GPO's - "server 2008 r2" - I have a seprate forest where I am updating and I logon with my DA creds to a DC within that forest .. when I try and copy a file into the policy folder for machines > startup > I get an access denied error .. I am a domain admin .. and having a look at the security rights on the folders .. DA have full rights ?? the other domains update fine no issues .. only this forest has an issue.