I have a Shuttle SN85G4 system with an nForce3 150 chipset. When I boot up, and up until I login to FC2 (loads the GNOME desktop), the audio is clean, but when it finishes my login, there is massive amounts of very loud crackling sound. Is this a problem with Fedora, or my chipset? I remember listening to the audio sample during installation and it was crystal clear then. Any help?