I get the following error message: "Notebook failed to start up. Ensure there is not another copy of Notebook already running (can't register client.)"
According to the official information the application is not compatible with OSX 10.9. You need to check Maverick's update table periodically so that you know when the application is fixed and compatible with 10.9
Is Markspace going to update MissingSync (mine is Android) or not support it further for OSX. They list compatibilities on their site but make no mention of whether the intend to, or can, update MissingSync to work with OSX going forward.
You can read about an older version of notebook that will at least allow you to look at your notebook data https://support.markspace.com/index.php?_m=knowledgebase&_a=viewarticle&kbarticleid=615 as well as workarounds on synching...
