On a user form I have a listbox that I am populating by having set it's
rowsource to a range on a named range worksheet.

I have actions which are run from the userform which add or subtract entries
from this named range. I have code which changes the named range when new
items need to be added/subtracted and this works. However what do I have to
do to have the listbox updated.

It seems to me that I have to physically move the scroll bar of the listbox
to have the changes recognised.

PWS