Fanoush: You are right (of course). The /mnt/initfs diectory was full. I have also (belatedly, of course) read the README file, and from what I have now learned I believe that, again, "discretion being the better part of valor," I'll not proceed any further with my experimentation in this regard with the 770. I take it that there is insufficient space in the /mnt/initfs directory for me to configure my own bootmenu.conf file to use in place of the bootmenu.sh file that's currently there. I am even more eagerly now looking forward to receipt of my N800, which I have regretted having to purchase. Regards, Jim