I am having the exact same problem. I've tried uninstalling
Quicksilver (the usual Mac way, dragging to trash, and using the
"Uninstall" option within QS). I've tried to find the Quicksilver
configuration files, but haven't been able to. Only the application
itself comes up when I Spotlight-search for "Quicksilver".
"Reset preferences" does not fix it, either.
Other than Time Machine reverting my system to pre-Quicksilver, is
there another way to fully purge Quicksilver from the system so it can
be freshly reinstalled?
I am using version 3815.