Done something a bit stupid and cannot appear to put it right.
Used a group policy to force a proxy address for users and enabled cannot change.
i then put the admin username in the group policy so the proxy server is now pointing to itself and not the external proxy address it should redirect to. doh
I have removed the admin user from the group but when i do a gpupdate /force i still cannot access the proxy setttings in internet options, they are still greyed out?
I have checked and i have definatly removed the admin username form the group.