I'm wondering what is the proper procedure to downgrade the kernel (and perhaps other packages) in FC4? I have a computer with a VIA chipset, and the latest kernel causes the computer to freeze up after about a day or so of playing MP3 files straight. At first I thought it might be player software itself, so I replaced mpg321 with mplayer, but the same thing still happens. I suspect it is either an upgraded kernel or alsa-lib that's to blame, as this problem didn't happen prior to a "yum update". Thanks, Patrick