Group Policy not applying to some computers

We have a Windows 2K3 domain with Windows 2000 clients. A couple of the clients are not receiving all of their GP settings.

All GP settings are contained in one policy object.

Using gpresult on the non-updating users show that the policy was applied correctly:

“The user receivced “Registry settings from thse GPO’s: xxxxxxx”

However, the computer is using local group policy settings:

“The computer received “Registry” settings from thse GPOs: Local Group policy

The non-updating computers are in the same container as the updating computers.

Are the gpresults indicating local group policy updates where the problem lies?

Any other ideas?