Hi,
If you set the font size of the text field value (not the caption) to zero then the text will shrink to fit. This can be set in the font palette. But this can reduce the text so small that it can't be read. If you are developing a dynamic form then you can set the text field to expand to fit (in the layout palette), just make sure the containing subform is set to flowed, when the user exits the field it will expand to fit all text.
Regards
Bruce