[Koha] Patron Import Tool not working on Koha 3 Beta?

[carpentercarselibrary at gmavt.net]

On Koha 3 alpha (Debian Etch), I was able to use the Patron Import tool
available via the Staff Client Tools page, successfully importing hundreds
of patron records from a CSV file.  I've tried the same thing on the beta:
it tells me it was successful, but when I search the patron records, none
are there except the ones I've entered manually.

Am I missing something?

Thanks in advance for any help!

Richard Pritsky
Carpenter-Carse Library
PO BOX 127
Hinesburg, VT 05461
802-482-2878
www.carpentercarse.org