I dont see Calculated Value boxes. I am using Microsoft InfoPath Forms 2007 OOB (out of the box). I might be upgrading to Infopath 2010 soon, not sure if this will give me the control you are talking about.
Currently my controls are
Textbox, rich text box, drop down list, list box, date picker, check box, option button, button, section
Optional Section, Repeating Section, repeating table
hyperlink and expression box.
I dont see Calculated Value Box as a control.
I will try and send you my form Patrick and Jimmy.