My synergy setup at work is relatively simple. I have a MacBook Pro running Snow Leopard that acts as a synergy server and a desktop running Fedora 12 as a synergy client. On the Mac, I use SynergyKM to manage the synergy server. The Fedora box uses my gdm strategy for starting synergy at the login screen and in GNOME. I kept having an issue where the shift key would become stuck regardless of the settings I set for the client or server.