When I try to go to Windows update I get this message.
I'm running WinXP Pro.
When I click on Update Now, I get the following message
box.

Security Warning
Do you want to install and run
http://v4.windowsupdate.microsoft.co...6/unicode/iuct
l.CAB?37954.5414583333?
The publisher cannot be determinied due to the problems
below:
Authenticode signature not found. (Yes, No)

I say yes and it returns me to:

New Windows Update Software Required

(The Windows Update site has been updated. To update your
version of the software and begin using Windows Update,
click Update Now.)

How can I fix this. Can I update Windows update in a
different manner?

Thanks in advance.

Vicky