Opps, another thing forgotten in InfoPath, remove the formatting of the rich
text box.

It is simple; add to the format menu (remove formatting!).

Now after you delete the contents of the text box, and empty it completely
after a paste, some of the formatting is still in there.

The easiest way should've been, (Format -> Remove Formatting)

You know (or actually I don't think you know) it is there in the other
Microsoft Office Products like Word.

I still remember back in 95, and 97 when we were presented with the office
demos at that time, "you can switch between the office products, and still
have the same menus, toolbar commands, look and feel)

But I guess was applying to 95, 97 not to 2003