I've seen a lot of posts on calculated fields not displaying or exhibiting strange behavior. Through a lot of trial and error I have discovered two conditions. I have two fields on a form that ask for gender and birth date. 4 object attributes immediately following those two are determined by those two values, gender and birth date.
Form controls that are used to calculate other attributes must lose the focus before the calculated fields are display. I was using the mouse to move to the next field after the four calculated fields and that was not causing the necessary loss of focus. Using the tab key after entering the birth date did the trick. All four fields displayed immediately with correct values in read only mode.
Also I found that tabbing is inconsistent with Mozilla but works correctly with Explorer. Using the calendar control to select a date also sometimes causes inconsistent results. Keying in the date and using the tab key is always consistent in my case.
tford, maybe you can spread this info around.
Thanks for your help