Maybe there is something wrong within the tracking code?
The tracking code in our main domain looks like this:

<script type=”text/javascript”>
var gaJsHost = ((“https:” == document.location.protocol) ? “https://ssl.” : “http://www.”);
document.write(unescape(“%3Cscript src='” + gaJsHost + “google-analytics.com/ga.js' type='text/javascript'%3E%3C/script%3E”));
</script>

<script type=”text/javascript”>
var pageTracker = _gat._getTracker(“UA-xxxxxx-1″);
pageTracker._setDomainName (“mydomain.com”);
pageTracker._trackPageview();
</script>

I can see that there is no “.” and a space after setDomainDame (…) Could that be the problem? Becaus the code on the sites of our subdomain looks just fine like this:

<script type=”text/javascript”>
var gaJsHost = ((“https:” == document.location.protocol) ? “https://ssl.” : “http://www.”); document.write(unescape(“%3Cscript src='” + gaJsHost + “google-analytics.com/ga.js' type='text/javascript'%3E%3C/script%3E”));
</script>
<script type=”text/javascript”>
try {
var pageTracker = _gat._getTracker(“UA-xxxxxx-1″);
pageTracker._setDomainName(“.mydomain.com”);
pageTracker._trackPageview();
}
catch (err) { }
</script>

Is the difference with this “.” and no”.” the problem? The filter was implemented just as described.

Thank you so much for help!
Gil