Try this ( with patience )

a) Open properties
b) Run this ( with a Command selection ) or with a Program:

SET ESCAPE ON
WITH CREATEOBJECT('TextBox')
	.Tag = 'by by baby'
	DO WHILE .T.
		DOEVENTS FORCE
	ENDDO
ENDWITH

c) Go to SCREEN properties
- Set Caption to =.Tag
- Observe the VFP Caption: it is 'by by baby'
press ESC and cancel
c) Go to SCREEN properties
- On Caption redo a ENTER
- Observe the VFP Caption: it is empty

You can replay this with a Form/pageframe session.

Fabio