Intermittent computed text

Why is that my computed text act so strange, sometimes it shows the value and sometimes it dont, is there a bugs on the computed text?

Subject: Intermittent computed text

There are no bugs I know of in computed text, but there are some things to be considered. For example, if the computed value depends on other fields on the document, make sure that those fields are either above or to the left of the computed text, as the order of computation if from top left across to top right and so on down to the bottom right. If you have a field value after the computed text, you may get results which are based on the 'old" value.

Subject: Intermittent computed text

I have had problems with computed text when it comes to printing.Sometimes the values would be printed, sometimes not.

For one particular form, I changed all computed text to ‘Computed for display’ fields, and then it worked fine.