I think I may have solved the problems I was having with the UDMA66/100 on my Athlon boxes. I append the option mem=nopentium to the paramaters passed to the kernel by lilo, and the hangs appear to have stopped.
I have only tested this with the v1.2 board (personal machine), as I cannot afford to mess with the work system at the moment. Hopefully I will be able to leave my work system doing the mkisofs test overnight. Perhaps the installer should add "mem=nopentium acpi=off pci=noacpi noacpic" when it detects an Athlon box. -- John Allen, Email: mailto:[EMAIL PROTECTED] MandrakeClub Silver Member.