Hover the mouse over the find "finger" button by the search entry box, and if you have help on - it will tell you the hot keys for searching in the mouse-over pop-up text. Repeated operations repeat the search again, and searching wraps round at end of file.
So - you can poke away at the "finger" button with the mouse, or press either of F3 or F11 to start or repeat the search. Enter works as well but only if the search text entry box still has focus - not if you have clicked onto another data field on the form.
(I have no idea why both F3 and F11 are active, its buried in the mists of time. Maybe somebody wanted one nearer right hand fingers (F11) or his left (F3)?
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