I am running Windows XP Home, and recently updated to SP3. The Windows
updater is now trying to install the following update:

Security Update for Microsoft Office Excel 2003 (KB951548)

However, every time it tries, I just get the message, "Some updates could
not be installed," with that update listed.

As a result, my computer is continually downloading, trying to install, and
then failing to install that update. It's getting really annoying.

Is there a way I can get it to stop trying to install that update, or
otherwise fix the problem? It doesn't tell me why it can't install the
update.

Thanks.