Thanks for the reply. Windowed mode -- two game windows side by side.

After messing around more, I've found that as long as my focus 'window' is the Clone Keys window, then all keystrokes are broadcast to both WoW client windows. However, as soon as a WoW client window becomes my focus window, Clone Keys is not broadcasting those keystrokes to the other WoW client window.

Again, newbie here, but is this a symptom of my local settings or the way Clone Keys is designed?

Cheers,
Gruff