mjh101, I had and have the same problem at home with my 396T. I could do the update at the electronics shop (Windows XP) where I purchased it (Abel Electronics in St. Clair Shore, MI) from 1.07 to 1.09 so when I tried the 1.10 update I still could not do it at home (Windows XP) BUT when I took everything to work (Windows 98) I could do the 1.10 update no problem. I do not have any issues with my ARC396 or Uniden free software for programming just the firmware updater program. Maybe it is a driver issue with the software for that program? I am using just the standard serial cable supplied by Uniden.