Edit: answered my own question by rereading


I just tried two WoW's on 1 machine and 1 on my machine, not having any problems with broadcasting. Although I couldn't get my machine to connect to the other, I just had the other connect and it worked fine.

Hey keyclone, not sure if this means anything to you, but extended keys work for me with Synergy (no broadcasting) when I move my mouse over to my other machine.