g1smd - 9:26 am on Mar 14, 2012 (gmt 0)
There's a new (minor) frustration with the Crawl Error reports. A site online for many years and which I rarely look at now shows there was 1 "URL error" from the start of the graph until some time last week. Nothing has been done to the site for months, but the error was cleared just a few days ago. There's no way to find out what that error was.