If you've inserted a cross-reference that way, your blue text would have been replaced by the cross-reference, which would most likely no longer be blue - unless someone has gone back and formatted the cross-references in blue. Hence, all you should need do is find any remaining instances of blue text. Supposing you do find such text (of which I'm assuming there may be multiple instances in a single document), what do you want to do about it?

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Cheers,
Paul Edstein
[Fmr MS MVP - Word]