Possible Duplicate:
Dash search gives no result
This is a bit similar to Unity File Lens Giving Useless or No Results but worse - I have a relatively clean install of 11.04, upgraded from 10.10, and I don't seem to have any lenses at all, only "shortcuts"; and I never ever get any results, regardless of what I type in the dash search box.
Yet zeitgeist is installed OK and works as evidenced by the Activity Journal.
