Update keeps installing...not sure where to start

[PDG]

"Security update for xml core services 4.0" keeps updating on my computer.
But my Windows Live OneCare is warning me that I need to install Windows
updates (again).

I'm not sure where I should start to try and fix the problem. I already
downloaded the malicious software tool and nothing was found.

Any suggestions out there?????? Thank you in advance.

 

[PDG]

BTW, I have Windows XP Home Edition

 

[PDG]

While waiting for a response, I found
http://support.microsoft.com/kb/941833. I downloaded the 941833 package.
It seems to have fixed the problem. I'll write back if it actually failed.
Thanks for reading my posts.