I've looked at locking the tree, but it's not checked in the view menu. However, I cannot expand any of the drives on the left side, in the tree. All I see is drive letters/names. "Computer" will expand and contract, but not the drives.
The action in the mini-tree is working, however, that only includes places I've been to lately.
Why won't the standard tree behave? (I fear the answer because it's going to show how stupid I am.

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