Seems broken on my comp.
I have my microphone plugged in, I can hear my voice come out of my speakers when I speak into it, and I check the Push to Talk checkbox. However, once I get out of the options, 'p' does not work, and when I check again in the options, the checkbox is unchecked.
Suggestions?

Windows XP here, by the way.

/lua VoiceChat.SetPTTMode(true) in console.

/lua GetSystem.OSEqualsMACOSX(true) seems to work too :D

Funny MC really, speacially since Mac folk are having issues too :P

Stick yer Mac where the sun don't shine!

[back on topic]

It works for me in Windows, but I still need to do the /lua VoiceChat.SetPTTMode(true) thingy in Debian. Strange...

Whatever it was, the latest update fixed it. :)

fixed.