Outlook 2003 / 2007 FROM & CC details missing

This problem is happening on two different clients systems.
a. Outlook 2003 emails are received thru Exchange 2003 on W2K3.
b. Outlook 2007 emails are received thru Exchange 2003 on W2K3.
OL 2007 reads from Exch2003 to an OST file on WXPP SP3

The details listed below are for OL 2007 but the same Outlook screen
displays apply in OL 2003.
These emails are displayed in Outlook 2007 (12.0.6316.5000) SP1 MSO
(12.0.6320.5000).

Inbox - column headers being: From, Subject, Received, Size, Category, In
Folder

a. viewed in Main Inbox as a List, with View pane = bottom
From: Column = blank
Display in the Bottom View Box= SUBJECT is correct, TO is correct, SENT
is correct; no CC line id displayed

b. Open the Email to full page view
From Column = Blank, CC Column = blank
SUBJECT is correct, TO is correct, SENT is correct

The "faulty emails" are generated and sent via smtp from within the same windows accounting application.
The same Email received to a Linux mail server and then displayed using Thundrebird presents correctly.

These emails which are received from the application mentioned above, do not show FROM &/or CC details; but when you get that emails properties from Message Options / Internet Headers; the FROM & CC details are showing.
Cant find where the details are being suppressed.
Turned off Email Scanning on the AV (AVG Internet Security Network Edition)

Any ideas greatfully received.
Many Thanks

Terry

<< -- Outlook Email Msg Options / Internet Header -- >>
<< -- All address' & IPs have been changed for this code. -- >>
 
Microsoft Mail Internet Headers Version 2.0
Received: from domainname.com.au ([192.168.0.0]) by box.server.local with
Microsoft SMTPSVC(6.0.3790.3959);
Wed, 18 Mar 2009 09:17:27 +1100
Message-ID: <d20090318t91727.30c1r964198.00@hp-ml350>
From: "" <someone@domainname.com.xx>
To: "" <receiver@someplace.com.ky>
CC: "" <someone@domainname.com.xx>
Subject: Statement for the Month of March - Company
Date: Wed, 18 Mar 2009 09:17:27 +1100
MIME-version: 1.0
Content-Type: multipart/mixed;
boundary="--=_NextPart_000_d20090318t91727.30c1r964198"
X-Mailer: NetTalk Email 4.30
X-NetTalk: NetTalk Email 4.30
Return-Path: someone@domainname.com.xx
X-OriginalArrivalTime: 17 Mar 2009 22:17:27.0312 (UTC)
FILETIME=[27C29100:01C9A74E]
 
----=_NextPart_000_d20090318t91727.30c1r964198
Content-Type: text/plain;
charset=us-ascii
Content-Transfer-Encoding: 7bit
 
----=_NextPart_000_d20090318t91727.30c1r964198
Content-Type: application/x-unknown;
name="ACCState1.pdf"
Content-Transfer-Encoding: base64
Content-Disposition: attachment;
filename="ACCState1.pdf"
 
 
----=_NextPart_000_d20090318t91727.30c1r964198--

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