Closing several folders at once. Possible?

when I open a project in X2 that I started in X1 all folders in the project are open.
(these are quite big projects so it takes time to close them all one by one)

this is quite annoying (the folders were closed when I opened the project in X1)

is there a way of closing all folders at once?
I've tried selecting all and ctrl+close, but that doesn't work and I can't find anything useful in the menus either

Hi and thanks, Bristol_Jonesey
I checked and it's not locked screen sets.

The thing is that, if I close all folders and reopen the project in X2, the folders are closed.

But all projects I open in X2 for the first time, that I created in X1, will be opened in this state (with all folders open) no matter the screen set settings :/

It's not the end of the world, but it's quite time cosuming to have to start and close all folders in X1-projects I want to continue working with in X2 :/

So it would be nice if there was some kind of "close all folders"-function somewhere

alright :)
thanks anyway!