kylix3 connection problem

allo,

I am stalling over this kylix3 connection problem with postgresql 7.2 in Redhat7.3

I had unmarked the line in
[1] pg_hba.conf in /usr/local/pgsql/data1
host all 127.0.0.1 255.255.255.255 trust.
[2] postgres.conf
tcpip__sock = true

[3] in the hidden dbxdriver file,
VendorLib = libpq.so.2

[4] in kylix3 dbexpress SQLConnection properties :-
hostname localhost
username daniel
password daniel

[5] the postmaster is started via :-
daniel(at)localhost daniel]$ pg_ctl start -D /usr/local/pgsql/data1 > logfile 2>&1 &

i hope to get some experienced postgresql_kylix3 to help me out of this loop.

ciao
daniel