Google WMT says one of my sites is linking to me, but it's not

[internetheaven]

Google WMT says that a page on one of my websites is linked to by every page (16 pages) of another website I own. Both are hosted on the same server but under different IP addresses.

That site has never linked to the other and is not currently linking to it as far as I can see. I've checked for errors such as:

virtual hosting
base tag incorrect
invalid redirect

but i can't find anything. There isn't even mention of the other site in a form script or javascript.

What reasons would Google say every page on one site is linking to a single page on another of my sites when, as far as I can see, it is not and never has?

Thanks
Mike

[tedster]

Maybe a bug in the data. I'd suggest running Xenu on the supposedly linking site, so the search is done by computer.