Comment 8 for bug 229668

Hi Pedro,
seems so.
Doing this:
open the documentation, search for network
- click once on Mines Manual - result: nothing happens
- double click on Mines Manual - result: window closes
Xsession.errors:
** Yelp:ERROR:(yelp-document.c:275):yelp_document_cancel_page: assertion failed: (document != NULL && YELP_IS_DOCUMENT (document))

I can reproduce this message by typing e.g. software in the search field and click once on e.g. Internet, nothing happens. Then on the same site click once on e.g. Control Center, window closes.
Exceptions e.g.:
type in the search field e.g. software and click once on About Ubuntu (it's the first link shown on this site) it works fine and information about free software appears.
or
type in the search field e.g. network and click once on Ubuntu Server Guide (it's the first link shown on this site) it works fine and information about Installing from CD ...The basic steps to install Ubuntu Server Edition from CD... appears.

Aside from this I'm able to reproduce backtrace messages in xsession.errors when doing this:
reach the site Ubuntu Server Guide like descripted above, then with right click on e.g. Wiki Applications copy and paste the path into e.g. tomboy, moving back to yelp and now click on Wiki Applications the window closes with a backtrace message, also happens by doing the same procedure with e.g. Networking in the same submenu.

Alternative, copy and paste the path of e.g. Wiki Applications, then come back and click on e.g. Networking, results backtrace.

For the record,
if I don't use the search field at all and begin from the start site "Ubuntu Help Center" clicking on any submenu everything works fine.