[chirp_users] Problem reading UHF data from radio using a Mac

I am a new user of Chirp so I'm still learning my way around. I have been able to read from my radio, a Wouxum KG-UV3D, the 2m/440 version. I can upload the 2m data from the radio but not the 440. I have set Chirp to read all 128 memories, but only the 38 2m frequencies show up. Am I doing something wrong or is this a limitation of the software?

I am using a Mac running OS X 10.6.8; the Mac OS X version of Chirp Version 0.2.3 (GTK 2.24.10, PyGTK 2.22.0, and Python 2.7.2). The cable is a Wouxun WXUSB USB programming cable.

Anyone have any suggestions?

Ed, KK4LAL