Thanks for the reply.

Unfortunately, I think it's unlikely that I'll be able to find a system with 4 gig of ram, but there were a couple of things I thought might be leads, if only on ramdisk size.
- The text as it's booting says that it allocates a ramdisk of 1645060 kB, is there any way of forcing this higher? maybe...
- isolinux.cfg - This includes a ramdisk_size argument - apparently a minimum size (100,000), any way of manually changing this at boot, or loading my own isolinux.cfg, maybe from a usb stick (no floppy drive)?

Thanks

Sandy