dear folks.....

im a domain admin but when i want to edit some settings of default GPO and save it it says access denied !!!!

what to do??

its windows server 2008 standard edition DC.

i have given myself full right but though it says access denied

also gave full rights to domain admins........

You may want to check the ACL on the Delegation tab (Advanced button) of the GPO in question as well as what security principle is set as the Owner. 

Another question - Does this happen on other GPO's? If not, it clearly indicates an issue with that particular policy.

hi dirk......

i cant edit any of the GPO's !!!!!

domain admins are given read, write full right in GPO's but though i cant 

any idea what im missing ????

im only member of domain admin and domain admin has the rights but not working :-(

Hi Istiaq,

Who is the owner of the GPOs, domain admins? Were there error events logged in the Event Viewer?
Regarding GPO permissions delegation, for double check, the following article can be referred to for more information.

Delegating Group Policy

http://technet.microsoft.com/en-us/library/cc782520(v=ws.10).aspx