The "Automatic Update" does not work.

I have seen the update log, on the computer and it states that the automatic
updates are always unsuccessful.

Here is a copy form this log file:

***
{6CD18B1B-B042-4CCC-AD62-2AB0F0EADF7F} 97 2005-11-28 17:44:17+1100 1 148 101
{D67661EB-2423-451D-BF5D-13199E37DF28} 0 80245003 SelfUpdate Failure
Software Synchronization Error: Agent failed detecting with reason:
0x80245003
{949C65E7-A30A-4CD2-8952-383EF5BA268D} 98 2005-11-28 17:44:23+1100 1 148 101
{00000000-0000-0000-0000-000000000000} 0 8024400a AutomaticUpdates Failure
Software Synchronization Error: Agent failed detecting with reason:
0x8024400a
{2FF829E1-A2AD-4C4F-BE57-FA88B5835F78} 99 2005-11-28 17:59:08+1100 1 148 101
{D67661EB-2423-451D-BF5D-13199E37DF28} 0 80245003 SelfUpdate Failure
Software Synchronization Error: Agent failed detecting with reason:
0x80245003
{F1ECD9AE-DFA6-4AB6-A942-A143565EA74A} 100 2005-11-28 17:59:15+1100 1 148
101 {00000000-0000-0000-0000-000000000000} 0 8024400a AutomaticUpdates
Failure Software Synchronization Error: Agent failed detecting with reason:
0x8024400a
{F0957CBC-497C-4BC0-90E4-9D8EF90BAADD} 101 2005-11-29 07:43:58+1100 1 148
101 {D67661EB-2423-451D-BF5D-13199E37DF28} 0 80245003 SelfUpdate Failure
Software Synchronization Error: Agent failed detecting with reason:
0x80245003
{3322EC0B-E047-41CA-9E8A-C25779F24465} 102 2005-11-29 07:44:04+1100 1 148
101 {00000000-0000-0000-0000-000000000000} 0 8024400a AutomaticUpdates
Failure Software Synchronization Error: Agent failed detecting with reason:
0x8024400a
{3B926845-DA2F-4CE3-8AEE-EAB67ACA216F} 103 2005-11-29 12:24:15+1100 1 148
101 {D67661EB-2423-451D-BF5D-13199E37DF28} 0 80245003 SelfUpdate Failure
Software Synchronization Error: Agent failed detecting with reason:
0x80245003
{91E3880C-6571-4050-BBDE-5FD07A676EB5} 104 2005-11-29 12:24:23+1100 1 148
101 {00000000-0000-0000-0000-000000000000} 0 8024400a AutomaticUpdates
Failure Software Synchronization Error: Agent failed detecting with reason:
0x8024400a

***

This has happed after a reinstall of Windows XPpro./SP2

I have a Pentium4 1gbRAM

Please help, Frank