Page is a not externally linkable
aakk9999 - 1:20 am on Nov 22, 2011 (gmt 0)
Although annoying, it is not the problem if such URLs are returning 404.
However, if such partial URL returns 200 OK (and you do not have a canonical link element implemented) then you might have a duplicate content problem on your hand that can quickly escallate, so watch Duplicate Titles/Description section of WMT for it.