I was convinced that a pupil GPO was being applied to a member of staff. (don't ask)

I went to deligation and added the security group "staff" of which I'm NOT a member and set deny on the full control. The second I did the GPO became inaccessible!

Anyway I can't edit the deligations back, I went to the sysvol>policies folder and removed the staff entry from the ACL. I can browse that folder fine.

Unfortunately I must need to do something else as the GPO still shows as inaccessible.

It's on a DFS share but I checked both servers and the ACL has been updated.