Computer Location Field: LDAP Path not updating?

I leave the computer location field empty on our agent configuration so that the AD LDAP path poulates that field.

However, after moving some PCs to different OUs recently, even after manually forcing a /F /SYNC scan on the machines in question, their Computer Location (ldap path) details have not updated.

Q1 Does this field not update automatically?

Q2 How can i force an update?  I notice on occasion (whether initial client install of scan i a mnot sure) there is the process ldapwhoami.exe which seems a likely candidate - how do i use it?

Thanks