Hi, I'll try to be specific about what happens.
When I start PM and the contact sheet dialogue comes up I always just cancel that and go to the nav tree on the left because I usually use several folders in a session.
So I have folders A B C D (not their real names) on the drive and they have riders 1 to 250 in numbered folders inside them for each rider's photos.
For these last few sessions I have been working on pics in folders C or D, but folders A and B also fully open as well sometimes. Folder A was made long before I bought PM and I can't ever remember using PM looking at it at all. Folder B was made before as well but I did do some IPTC work with PM on it but I haven't used it for over a week, it keeps opening up all the way as well. Yesterday I just wanted to work in folder D but C kept opening up as well so I end up with a nav tree with 500 or more items on the list.
I seem to have found a work around. If I close every folder and then close PM and restart, then the unused folders don't seem to keep popping open. I'll try working with this some more and see if it keeps working.
I know what you mean about having it open so I can tell where the files are and I like that feature because it's familiar it's just when it keeps opening other folders that my work gets confusing. Everyone of those folders has a rider 1 for example and if I don't notice that the folder has expanded then suddenly I'm working with files from the wrong event and it gets frustrating.
Thanks