I have had a problem recently with receiving "Cannot resolve
backlink" for certain tables when loading some forms. Simply removing
the offending table from the database and then adding it back does not
always solve the problem. As it turns out, if the offending table is
loaded in the data environment of a form, then you must remove the
table from the form and then add it back to the form. Once you do
that, the "Cannot resolve backlink" error will stop.
Kevin Clark