I keep getting this box pop up when I open certain programs, like Zend Studio, Adium and iTunes (It only occurs in iTunes when I try to use AirPlay to play something on my Apple TV). I've checked, and confirmed that all programs are set to 'allow incoming connections' in the firewall settings and no matter how many times I press 'allow' this pop up keeps showing when I open the programs. Does anyone know how I can sort this? I'd appreciate it so much. I've done a search, but still can't find anything.