[Koha] Uploading MARC records

We're trying to use the tools for uploading MARC records into Koha in version 1.2.2, but when we select a file for uploading and click on the submit button we get an errorlog message "DBD::MySQL::st execute failed: MySQL server has gone away at /data/koha/apache-koha/cgi-bin/koha/acqui.simple/marcimport.pl line 820". Can someone give us direction as to what might be wrong here? Larry Currie -- Lawrence W. Currie User Services Librarian California Academy of Sciences Golden Gate Park San Francisco, CA 94118 lcurrie@calacademy.org (415) 750-7108 (415) 750-7106 fax http://www.calacademy.org/research/library/