Hi Kevin,
Now my memory isn't what it used to be, but somehow I think that not being able to save to the root directory of the drive was done intentionally.
A few years back (BIAB 2015) there were issues, either because of permissions, or volume names having certain alpha-numeric characters in them that created problems when saving from BIAB to the root directory of the startup drive.
Sorry, I don't remember the exact cause of why this was done, but I think that message is normal saving to the root.

The only reference to it that I could find was from this page :
http://www.pgmusic.com/support_macintoshupdates.htm

Quote:
Summary of Changes for Build 103 (July 15, 2015)

- Fixed: There is no error message when user attempts to save a file to the root of a drive.

Having said that, this does not explain why you can't save to any other directory, especially your desktop.

If you select the "Desktop" folder in your home folder and hit "Command & I" keys to "Get Info...", do you see your account name in the permissions list ?
Does it have "read/write" access listed ?

- Jay

Last edited by JayO; 04/30/17 06:25 PM.
MacPro 5,1/12 core@3.46GHz -- OS X 10.15.7 -- ATI 7970 -- 32 Gig RAM -- Crucial 500GB OS SSD -- Samsung EVO 1TB Audio/Sample SSD -- BIAB 2024 -- Logic Pro X -- Cubase Elements 14 -- Too many plugins