I'm running Mandriva 2006 on a Shuttle sn43G AMD Athlon XP
Weird thing - my keyboard input regularly freezes. The mouse still works, but it's as if someone unplugged the keyboard. I've switched keyboards and the same thing happens with both. And everytime I reboot, it works again for a while, which makes me think it's not a hardware problem. It might last hours of use, or maybe just 10 minutes.