10.5.8 won't show UPS battery level

I just installed an APC Smart UPS 1000 VA UPS to my Mac Pro server.  The USB cable is plugged in and the UPS battery is fully charged according to the display on the UPS itself.  The Energy Saver control panel is the APC preferred control method (they do not supply software for MAC OS X after 10.4) and all the controls appear as expected with the exception that the Battery Level indicator at the top of the Prefs panel shows 0% full.
I've unplugged and plugged it back in to no effect.  I restarted the server.  I turned off the power at the wall switch and the UPS ran the server with no dramas for about 10 minutes.  Nothing I tried had any effect.
There is nothing in the APC support site other than instructions for using Energy Saver panel.
Our power here has been pretty flaky this year and I want the server to gracefully shut down after about 10 minutes of an outage.  It won't work if the UPS won't talk to the copmputer.
Steve

Have you checked to see if another USB device works on the USB port the UPS is connected to?
You could try some of the suggestions for USB ports not working:
USB and FireWire Quick Assist
http://support.apple.com/kb/HT1151?viewlocale=en_US
Common fixes for USB device issues (unrecognized, etc.)
http://www.macfixit.com/article.php?story=20070824012114701
 Cheers, Tom

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