I've had ArmA 2 for about 5 days now, and for the first few days the in game VON worked great; every channel sent to the right people and everybody heard me. For the past day or two, no matter where I go, nobody can hear me on VON, not an any channel.
For a failsafe test, I took several trust worthy unit-members into different servers and tested VON on every channel, and while I could activate the mic icon, nobody could hear me. I know this isn't a mic problem because at the same time I'm in ventrilo/teamspeak with them talking. I use separate keys for in-game VON and third party VOIP so it's not a key conflict either.
The in-game VON doesn't work no matter what I try; if I shut down ventrilo it still doesn't work. I haven't changed any settings when this started.
And lastly I'd like to apoligize for the robot quality of my speech, I'm quite tired. :j: