For some reason as soon as I launch the game (or the launcher) it stops my push to talk key from functioning when using voice chat software (tried with ventrilo and steam).
If I alt+tab back into windows it'll function again but as soon as the focus is back on either eastern front or the launcher it stops functioning again.
I've tried setting it to various different keys, a mouse button and even tried swapping my USB keyboard for a PS/2 one with no luck.
I'm running 64-bit Windows 7 if that helps.
Thanks