In the MySQL Database, the fields for the checkboxes are as follows:
IncludedInArtistsExhibited enum('Y','N')
IncludedInArtistsInventory enum('Y','N')
...so inserted values are either Y or N.
Generated Search Form looks as attached.
I also attached a screenshot of the edit I made to the checkboxes. I changed the "checked value" to Y for both checkboxes to match the Y,N enum values in my database (i think that should work?)
See attached.
Thanks for any further help.
D.