"Text bubble" not showing...sometimes....persistent

When I start l my machine (Linux Mint 15, Kernel 3.8.0-33-generic) Palaver works fine. At 'some point' (guessing an audio conflict with other audio programs, maybe Banshee and/or Mumble??). Then later I'll hit the hotkey and the 'listening' bubble does not show but the program still responds.

If I 'Restart Servers' then the bubbles return.