Password reset and unlock account issue in server 2008 domain controller

Hi,

we have group by namereset.

Lock1 andLock2 are the two normal domain users which are member of reset group.

Reset group is a member ofaccount operator builtin group.

Now the problem comes here

Lock1 and lock2 can unlock all the user accounts in the domain. But lock1 cannot unlock lock2 if it gets locked out or reset password of each other and viceversa.

please help ...

Thanks

Sunny