Okay, I think I finally got a handle on the "large config file" bug. The problem is that I can still not reproduce it, so I had to fix it on purely theoretical grounds. Therefore I do not know if I actually fixed the problem, or only an incidental bug. Please test it out: ftp://ftp.kernel.org/pub/linux/utils/boot/syslinux/Testing/ I also added the capability for the ISOLINUX directory to live in /boot/isolinux instead of /isolinux for the particularly festidious ones out there. -hpa