It might be something messed up in my system.

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Any chance you are trying to search in very long file? In that case, incremental search is disabled (and you need to push "Find next" button).

No.

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Do you see bottom bar with text?

Yes.

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Can you type text into into the field?

Yes.

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Have you tried pressing next/previous buttons?

Yes, nothing happen. O occurrence, or something like that.

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What about Find in files?

This has always worked fine.

By the way, if I don't go through the menu, but use Ctrl+F instead, I receive a ding, but nothing happen afterwards, not even the text field for entering text to be searched.

I have overwritten the previous compiled version of ide. Above replies are according to my memory. I don't think they matter any more since that problem might be unique to me.