InfoPath Dev

It didn't contain initial value. Is there any coding/rules can initial the conditional fomatting when it open the form? Just consider below situration I have open the form and update the field, it change to red color. The second time I open the same form, the field didn't change, suppose it should show in black color. But it still show ...

Hi, I am the one user the Infopath 2007 I would like to know any solution to indicate the field change. For example: field_1 = temp. After a few days, it is change to field_1 = abc. I would like the abc to change the color to indicate the change, such as red. Thank you