I've screwed things up
discovered the
sort bar, dragged two columns in there to sort by (inbox and..?)
then I (without thinking) right clicked these (in sort bar) and clicked hide columns & cant get them to show
ahhh, if I right click a column heading, select "displayed columns" I can choose them there
(BTW while that dialogue box is open the programme doesnt show in Alt-Tab)I was making the mistake of selecting
Manage Fields from same to try show columns

or toggle the filter (left of the filter edit box)
-PPLandry

when I do that I loose all the sub-items (of the only item with sub-items) and when I click it again
they dont comeback (tried F5) ...