I am using DOpus 10.5.0.0 (4779) x64.
Each time I open Opus, the Folder Tree shows my expanded folder tree BUT even if the branch is expanded, it shows a (+) instead of a (-).
I left mouse click the plus and it then turns to a (-).
I've attached a pic. The black arrow is pointing to the My Documents folder. Notice it has a (+). When I mouse click it, the only thing happens is the (+) turns into a (-). Everything seems to work ok until the next time I load Opus. (the Sir Bruce folder above the My Documents folder is the same way in the picture).