My friend and I are having a hard time using the in-game voice chat for Left 4 Dead. It works fine when we're in the lobby, but when we actually are in the middle of the game, us talking doesn't go through to the other person at all. I've tried setting it up so it works automatically when I talk and so that it does it when I push a button, but neither has worked. However, other people have joined our game in the middle and we've been able to hear them just fine. We wound up all jumping into a conference call on Skype while we played instead. Any ideas why we weren't able to get it to work right?
Also, for some reason, people have a hard time finding my account to add to their friends list. After playing a game last night, my name didn't show on the "recent games" list, although everyone else from the game did, and he couldn't find my screen name while running a search for it, despite having it spelled correctly while running the search. My friend and I initially couldn't find each other at all for like 15 minutes either, then he was able to find me and add me to his friends list and I still wasn't able to find him until he sent me an invitation.