NetBSD 3.1_STABLE works for me without IDE complaint on the Sun Netra T1 AC200, and its successor, the Sun Fire V120, with the caveat that I have not used optical media on these systems yet, just boot/probe/ autoconfig. I can send dmesg.txt from either system if asked. So, what changed between 3.1 and 4? Erik <fair@netbsd.org>