Any attempt to save a document to an external device via a Samba share results in the following dialog:
Error saving the document...
General input/output error.
I CAN save to a LOCAL folder, MOVE the file to aSamba drive using the Ubuntu file browser, and then successfully OPEN the moved file in LibO, and I CAN save files directly to a Samba drive from other applications, so I think it's safe to say it's NOT a Samba fault.
This problem has been around since OpenOffice, and has simply become insufferable.
*** This bug has been marked as a duplicate of bug 39093 ***