...Windows Server 2003? I have this OS installed for >2 years and I remember there was a UPS tab in the Power Options Window but that was a long time ago. Now, I've added a APC UPS , went to Control Panel>Power Options, and no UPS tab. There's Power Schemes, Alarms, Power meter, Advanced and Hibernate tabs, but no UPS tab. The "Help and Support" feature has instructions on how to use the UPS tab but I couldn't find it. The following services are enabled: Alerter, messenger, Event log and UPS.BTW, my OS is Windows Server 2003 Standard Edition SP2