In attempting to modify the 'Task' Form, I find that although I am able to
add new tabs and new fields to those tabs, I am unable to add / remove fields
to and from the original tabs: Task and Details. I am following these
directions: http://office.microsoft.com/en-us/ou...106101033.aspx
but when I get to the step illustrated in Figure E: , the existing tabs are
not in Design mode.