Unable to connect on W2K

I'm having some troubles getting a connection going in W2K.

I have Postgres 8.2.3 running, ODBC driver version 8.02.02.

The server has no firewall software.

When I set up a System DSN and try to 'test' the connection, it returns
"Could not connect to the server;
No connection could be made because the target machine refused it.
[172.17.152.207:5432]"

My pg_hba.conf file looks like this:
host all all 127.0.0.1/32 password
host all all 172.0.0.0/8 password

All servers on our network are on 172.* addresses.

The connection I am attempting is from the server itself. I've tried
numerous alterations to the pg_hba.conf file, putting different
addresses, CIRD masks, authentication methods etc but cannot get it to work.

The psqlodbc_1948.log file is as follows:
========================================================================
DSN info:
DSN='AutoDRS',server='FOOTPRINTS',port='5432',dbase='AutoDRS',user='AutoDRS',passwd='xxxxx'

onlyread='0',protocol='7.4',showoid='0',fakeoidindex='0',showsystable='0'
conn_settings='',conn_encoding='OTHER'
translation_dll='',translation_option=''
Global Options: Version='08.02.0200', fetch=100, socket=4096,
unknown_sizes=0, max_varchar_size=254, max_longvarchar_size=8190
disable_optimizer=1, ksqo=1, unique_index=1,
use_declarefetch=0
text_as_longvarchar=1, unknowns_as_longvarchar=0,
bools_as_char=1 NAMEDATALEN=64
extra_systable_prefixes='dd_;', conn_settings=''
conn_encoding='OTHER'
CONN ERROR: func=original_CC_connect, desc='', errnum=101, errmsg='Could
not connect to the server'
------------------------------------------------------------
henv=00000000, conn=00A73D28, status=0, num_stmts=16
sock=00A72138, stmts=00A72200, lobj_type=-999
---------------- Socket Info -------------------------------
socket=-1, reverse=0, errornumber=4, errormsg='No
connection could be made because the target machine actively refused it.
[172.17.152.207:5432]'
buffer_in=10971248, buffer_out=10975352
buffer_filled_in=0, buffer_filled_out=0, buffer_read_in=0
========================================================================

And the mylog_1948.log file is as follows:
========================================================================
[1948.1776(Wed Feb 21 12:26:39 2007)]DETACHING PROCESS
[1776-0.000]globals.extra_systable_prefixes = 'dd_;'
[1776-0.000]exe name=odbcad32 plaformId=2
[1776-0.016]aszKey='DSN', value='AutoDRS'
[1776-0.016]copyAttributes:
DSN='AutoDRS',server='',dbase='',user='',passwd='xxxxx',port='',onlyread='',protocol='',conn_settings='',disallow_premature=-1)
[1776-0.031]getDSNinfo: DSN=AutoDRS overwrite=0
[1776-0.031]rollback_on_error=1
[1776-0.031]force_abbrev=0 bde=0 cvt_null_date=0
[1776-0.031]globals.extra_systable_prefixes = 'dd_;'
[1776-0.047]calling getDSNdefaults
[1776-0.063]checking libpq library
[1776-0.094]hmodule=63100000
[1776-0.094]libpq_exist=1
[1776-0.516]GetProcAddres for GetMsdtclog
[1948.1776(Wed Feb 21 12:26:50 2007)]DETACHING PROCESS
[1776-1.469]GetProcAddres for SetMsdtclog
[1776-2.094]CC_connect: entering...
[1776-2.094]sslmode=disable
[1776-2.094]original_CC_connect: entering...
[1776-2.125]original_CC_connect: DSN = 'AutoDRS', server = 'FOOTPRINTS',
port = '5432', database = 'AutoDRS', username = 'AutoDRS', password='xxxxx'
[1776-2.125]connecting to the server socket...
[1776-3.250]No connection could be made because the target machine
actively refused it.
[172.17.152.207:5432][1776-3.250](4)No connection could be made
because the target machine actively refused it.
[172.17.152.207:5432] ERRNO=0
[1776-3.250]CC_error_statements: self=00A73D28
[1776-3.266]CONN ERROR: func=original_CC_connect, desc='', errnum=101,
errmsg='Could not connect to the server'
[1776-3.297]enter CC_get_error
[1776-3.297]enter CC_create_errormsg
[1776-3.297]msg = 'Could not connect to the server'
[1776-3.297]exit CC_create_errormsg
[1776-3.313]exit CC_get_error
[1776-3.797]enter CC_Destructor, self=00A73D28
[1776-3.797]in CC_Cleanup, self=00A73D28
[1776-3.797]after CC_abort
[1776-3.797]SOCK_Destructor
[1776-3.797]after SOCK destructor
[1776-3.797]exit CC_Cleanup
[1776-3.813]after CC_Cleanup
[1776-3.813]after free statement holders
[1776-3.813]exit CC_Destructor
[1776-47.344]DETACHING PROCESS
========================================================================

The server runs no firewall, no virus scanner, if I run a tcpviewer I
can see the postgres.exe process listening on port 5432, but I never see
any outgoing connection attempts when I try to test the connection.

Any suggestions on what might be malfunctioning?

This is just the second to last thing I need done before I can launch
our new product and release it to our customers - who are quite eagerly
awaiting its arrival so any assistance would be greatly appreciated.

Regards,
Paul.

--
Paul Lambert
Database Administrator
AutoLedgers