This is weird. I do a site: check for a website and I get a list of hundreds of cached pages. However, if I take the url of one of them and do an info: check, I get a " no information found" message. why would the site: check show me the page with cache, and an info: check give me no information available?
I am unable to duplicate the no information available message. In searching some of my own pages with the info: query, I am seeing the metatag description for the page. Do the pages you are looking at have descriptions?
With a site: check I get a list of pages, all of them with a cache link. When I copy the url of some of those pages and do an info: check, I get for example
Try info:www.mydomain.tld/pages.php/87006/Van_Morrison/Lost/ Code (markup): adding the trailing slash - and see if that doesn't make a difference. An info search for domain.com/support shows the 'no information' message, while domain.com/support/ shows the description from the metatags. The message 'did not match any documents' generally means it is not in the database. Does the page have a description metatag? Perhaps this is the difference. Also, if you are copying and pasting the url from the last line (green) of a serp, as opposed to copying the shortcut from the hyperlink or typing it directly, sometimes Google adds a space in the url to mess you up on that. My assumption has been that when I see the space, they may be doing some click tracking on that datacenter. Make sure there is no space in the url.