I built myself a new gaming computer a few months ago and everything was working fine. I use the front jack for my headphones so I don't disturb anyone else in the room. Today I got myself a new MSI HD 7950. I unplug all things from my jacks so I can install the card. Everything installs just fine, but when I plug my headphones back in they no longer work. I've un-installed and re-installed the factory audio drivers, I've un-installed and re-installed the Catalyst Control Center(video card drivers) without audio support and nothing works. Any idea's?