deadsea - 2:42 pm on Jun 27, 2011 (gmt 0)
I sometimes see this type of error from relative internal linking and weird apache default rules.
Take the page:
/libraries/radio/ which has the href "../../Pictures/gamecovers/images.html". Fine.
However, the same page is probably available with extra slashes on the url. Apache allows this by default.
From that url, the relative link resolves to
Sometimes googlebot or users stumble on extra slash versions of pages. Apache happily serves them up. Navigation can break. Googlebot can get 404s.