Didn't get a response to this, so I'm posting again in hopes that someone can help. *** Original Message *** OK, on Shrek's recommendation, I downloaded the apcupsd software, and installed it. However, I'm running into the identical problem I had when trying to use NUT. How do I figure out exactly what port the UPS is running on? All attempts to pick a port have yielded: "Cannot open UPS port: No such Device". I don't believe the problem lies with either software package, or my configuration of these packages. I believe it lies with not understanding how to read the current port in use, and the correct entry in /dev that corresponds to it. Can anyone help me figure this out? >From my prior emails, I submitted this for /proc/bus/usb/devices: T: Bus=01 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#= 2 Spd=1.5 MxCh= 0 D: Ver= 1.10 Cls=00(>ifc ) Sub=00 Prot=00 MxPS= 8 #Cfgs= 1 P: Vendor=051d ProdID=0002 Rev= 0.06 S: Manufacturer=American Power Conversion S: Product=Smart-UPS 1000 XL FW:631.3.D USB FW:1.5 S: SerialNumber=AS0315130454 C:* #Ifs= 1 Cfg#= 1 Atr=e0 MxPwr= 30mA I: If#= 0 Alt= 0 #EPs= 1 Cls=03(HID ) Sub=00 Prot=00 Driver=(none) E: Ad=81(I) Atr=03(Int.) MxPS= 6 Ivl=100ms - Michael