I am running Synergy 1.3.1 with Ubuntu 10.04 host, OS X Lion client.
I want to control the audio up/down/mute with the host keyboard. The AudioUp is used for the Ubuntu volume control, so I mapped the shifted versions as follows:
I know the problem is on the guest (OS X) end, because if I map to printable characters they show up fine on the mac side. It's just AudioUp and friends that aren't working.
edit: Tried 1.3.7, same problem. edit: Tried 1.4.4, same problem.