Links to External Websites Appearing in my Project

Hi,

Got a strange one here . . . it may be network related I guess, but I'm not sure.

I recently finished work on a large WebHelp project. When I outputed it to HTML I noticed that certain words have been 'hikacked' and used as links to external websites - webopedia.com being the most common:

<p class="DocsNormal" align="justify">Federated Instant Messaging (IM)<a href="http://www.webopedia.com/TERM/F/network.html"><span style="color: windowtext; text-decoration: none;">networks</span></a>
 allow communications across a variety of different IM <a href="http://www.webopedia.com/TERM/F/client.html"><span style="color: windowtext; text-decoration: none;">clients</span></a>
 and <a href="http://www.webopedia.com/TERM/F/platform.html"><span style="color: windowtext; text-decoration: none;">platforms</span></a>.
 A Federated IM network, has an open <a href="http://www.webopedia.com/TERM/F/directory.html"><span style="color: windowtext; text-decoration: none;">directory</span></a>
 allowing other IM networks to message their users. Federated IM networks
 often communicate using open standards, such as <a href="http://www.webopedia.com/TERM/F/XMPP.html"><span style="color: windowtext; text-decoration: none;">XMPP</span></a>.</p>

It's almost as if Google Adwords or some other site has taken over my document. These are certainly not links that I have put in; I generally only link to other pages within the same document and hardly ever go out to other sites. The only external links I have added to the project are for legitimate sites (Adobe and Avaya).

Has anybody else experienced this, and does anybody know how to stop it happening?

Any help or advice would be appreciated,

Thanks,

Alex