Calibre 0.8.7: E-Book viewer is missing search field
I was using the calibre e-book viewer and by accident I right-clicked at the top, near the search field. Some pop-up appeared with 2 options, one of them invisible. I think I must have clicked on one of those options, as thereafter the complete search field (and other fields) went away and stayed away.
Closing the viewer and restarting did not help. I cannot find any option to make them appear again: not in the viewer options, not in the calibre preferences. Issueing Ctrl-F didn't work anymore.
Beside re-installing, is there a simple cure for this?