Hello, I've compiled kernel 2.4.21 from unstable, but when I'm trying to setup UDMA mode X67-X69, kernel complains that udma 3/4/5 not functional and indeed hdparm -tT /dev/hda shows performance degrade. But kernel version 2.4.20 on the same machine works perfectly with UDMA. What could be the problem? -- Alexei Chetroi