With Synergy "the synergy project" uninstalled everything seems to functions as expected. This case can be closed.
Synergy is installed.I've tried penixx mouse and microsoft mouse With MC-15120 what he described with his mouse sounds like my issue.
Crash reporthttps://www.dropbox.com/s/zlbhvzc1lxn1ond/crash-2014-09-10_16.07.37-client.txt?dl=0
With Synergy "the synergy project" uninstalled everything seems to functions as expected. This case can be closed.