Question : Services fail to start

I'm having trouble with all my Vista client machines in my Windows 2003 domain. Some services like DHCP client, Diagnostic Policy Service, Network List Service, Network Location Awareness and Windows Time fail to start. All of these servies use the Local Service user account to start, exept Network Location Awareness, which uses the Network Service account. I'm not having trouble on any of the XP machines.

Where can I check (or what config changes can I make) to fix this?

Thanks

Answer : Services fail to start

In the Group policy, go to Registry and add the Local Serive and Network Service user ID's to Machine\SYSTEM with full control rights.