For a couple of weeks now (maybe after version 10), I know longer get the computer 'tree' on the left had side. The only thing that shows is the files in whatever directory I am in.
For example, I like to have the "desktop" icon there so I can go the user directorys under that..
I am attaching an image of what it looks like now.
In the OP1 image is how the Opus directory looks now.
In the OP2 image is form the windows explorer and is how I want Opus to be.
You can turn it back on here: