If I configure the paths like this:
<DocumentManager ViewPaths="~/content/uploads" UploadPaths="~/content/uploads" DeletePaths="~/content/uploads" MaxUploadFileSize="10485760" />
As soon as I click on the document manager I see the contents of "content/uploads" but if I try to upload something I get this message:
"A file with a name same as the target already exists
and you have chosen not to overwrite it!"
To overcome this, before uploading, I have to click on refresh, which takes me back one folder, enter the uploads folder and then upload -- and then it will work.