Help ASAP - User authentication failed

Hello....I built and installed Postgres 6.3.2 on a Solaris 2.5.1 machine and ran the regression
tests with no problems.  Now I am trying to create user accounts.  I create the account with the
createdb script, select yes for the two options and the account is created.  When I try to log-on
using that account I get an User authentication failed error message.  I am on the same machine as
when I log in as the postgres super user.  here is a copy of my pg_hba.conf

local        all                                         trust
host         all         199.4.254.238     255.255.255.255   trust
host         all         199.4.254.239     255.255.255.255   trust
host         all         127.0.0.1     255.255.255.255   trust

199.4.254.239 is the machine I am logged into and that is the machine the postmaster is running on.
I started the postmaster with the -i option and thats it.  Any suggestions?  I am desperate!
Thanks and please email a copy of your responses to me!
---------
Chris Williams
Sterling Software
Rome, New York
Phone: (315) 336-0500
Email: chris_d_williams@sterling.com