Diagnosis
You are editing a text field on the screen to which an icon is assignedand want to convert it to a graphical element.
Not all types of graphical elements accept icons. Boxes cannot haveicons.

System Response
Conversion rejected.

Procedure
If you want to convert the text field to a box, you must first deletethe assignment of the icon to the text field. You can do this in the"Attributes" screen, or in the field list by overwriting the icon namewith blanks or cancelling it with '!'.