DBLOAD failing ... help

Hi people, I've got a problem with dbload, and it's driving me crazy. I'm attempting to load data into a table, with the following command dbload -d mydb@myserver -c actdef.ctl -l actdef.bad -k >>load.log When I run this, I get the following error "Client host or user (Administrator@my_domain) is not trusted by the server." I've tried this as Administrator, the informix user that is set up by default during install, and several other users, and I can't for the life of me find any details on the error. Is there some sort of privilege a user needs in Informix to allow them to use dbload, (something similar to Oracle's import privilege)? Thanks, Fuzzy :-)