Hello,
I thought I'd revive this thread as it's not too old and I am having the same issue as BothanJedi, though I think he didn't describe his well enough (if, in fact, he is experiencing what I am with this particular case). What's happening is the front panel audio ports aren't accepting jacks fully; the jacks don't "click" in. I haven't taken a look behind the front plate to see how the ports are secured but one of two cases seems to be happening.
1) The front audio ports aren't secured well enough to allow someone to fully insert a jack.
2) The front audio port has too much of a gap between it and the outside of the case, not allowing for a jack to be inserted far enough.
The fact that a google search doesn't show many results for this leads me to believe this is an isolated issue. I will see what I find when I look more closely at the ports later today.