Thanks I had read that. But I am now from USA so I did not quite understand what “support” I though it meant "provide customer support, which Odrive or Apple does not provide anyway since we have to rely on Customer exchange forum.
Now I gues I should understand that Odrive does not work on any OS previous to Yosemite. And I suppose the “solution” is to uninstall Odrive,
too bad- I found it rathe rpractical so far.
[[another way for mac to force us to upgrade (free or not) to Yosemeie with all its bugs and changes.I suppose]]