GEOID field disappeared from options

[KerryKrell]

The GEOID field option has disappeared from the list in the Field Caluclator>field options. This is making it impossible for me to join data from a table (census data) to the shapefile. Anyone have any idea what's up?

[DanPatterson_Retired]

There is no GEOID option in the field calculator and field calculations have nothing to do with joins.  Are you perhaps meaning that there used to be a GEOID field in your table and in the table you are working with now, there isn't one and you need that field to perform a join?

[KerryKrell]

Yes, I should've been more specific. That is exactly the problem I'm having. It was there, but now it's not.

[DanPatterson_Retired]

check the table properties... I suspect that its visibility has been toggled off Begin reading in the link... subsequent to it is one on controlling visibility and other gems