That is totally weird! Can't say that I have encountered it before, but then I don't use the Find command in tables all that much.
If you want to find all records with a particular value, say "Fred" in the FirstName field of a table, you could do this:
1. If the value is visible on the screen, right-click the value and choose "Filter By Selection". If not, use Find to jump to the value you want and then use the Filter trick. That should give you a filtered list. You can also pick "Filter Excluding Selection" to get the flip-side...
2. If you want to regularly find the same sort of information, particularly if you want to combine info from more than one table, and/or you want some complex sorting, and/or you want to apply filters, move to using queries. They take a bit of getting the hang of but can be reused any time, and can also form the basis of data-entry forms and reports.
HTH
Denis