I have exactly the same behaviour with a Logitech Anywhere MX mouse. Dragging almost never works.
Another report with the same behaviour: http://ubuntuforums.org/showthread.php?t=2172455 -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xorg in Ubuntu. https://bugs.launchpad.net/bugs/1214906 Title: logitch M570 mouse stopped working in 13.04 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1214906/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : [email protected] Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp

