Howard
If you have the TextMate Ranker plugin installed, try uninstalling it
and restarting QS and see if that helps. (It's known to break the
third pane in some cases).
Howard
I doubt it's this, but there's often overlooked gear menu at the top
of the results list that has options for sorting and filtering the
results. All seems to be working fine for me and nothing in the
submenus is checked.
Howard
When you say "Gmail notifier is set as my default email app" what do
you mean? In Quicksilver or in Mail.app Preferences (where OS X
mysteriously puts the UI to set the default email app). "Gmail
notifier" is unrelated to using Gmail in quicksilver. In the QS prefs
under Handlers for Email I see choices for "Mail" or "Gmail Module".
Howard
I remember there being something with the email handler saying Gmail
Notifier or just Gmail Module but I don't remember. I don't think it
makes a difference.
Howard