I want to use the Checked or Unchecked state of a FORMCHECKBOX to control the
display of text in a template. I can do this using a FORMTEXT or FORMDROPDOWN
field with a bookmark and "Calculate on exit" selected.

With either FORMTEXT or FORMDROPDOWN I can write
{ IF {bookmark} = "X" text1 text2 }
and it works fine, but how do I do this with FORMCHECKBOX?