Thanks for your answer. It seems that for any reason, some grafical elements do not show up, sometimes. Today the three dot button ist there. Then I tried to reproduce this error, but I could not set a new share, because the file list does not show up on the "add folder" popup (using FF 33.1). Then I tried with internet explorer and everthing is fine. I give up testing here, since I do not plan to use btsync anymore for that data loss reasons I had. Best, Ben