Hi John,

To display the value of cell F3 in a text box within a user form in Excel 2003 VBA, you can follow these steps:

1. Open the VBA editor by pressing Alt + F11.
2. Insert a new user form by clicking on Insert UserForm.
3. Drag and drop a text box control onto the user form.
4. Double-click on the user form to open the code window for the form.
5. Add the following code to the UserForm_Initialize event:
   
   
   Formula:

   Private Sub UserForm_Initialize()
    TextBox1.Value = Range("F3").Value
End Sub 

6. Save the user form and close the VBA editor.

Now, when you open the user form, the value of cell F3 will be displayed in the text box automatically. If the value of cell F3 changes, the text box will update automatically as well.