I hate to ask, but I guess I gotta - I was able to get the bootmenu-installer onto my n800 yesterday (it was dual booting until the recent os update trashed it, suddenly, no access to the internal sd, back to booting from flash, which has issues as I will relate). I tried installing bootmenu-installer from my documents folder, but it just says unable to install. I really need it to work because I just recently discovered this n800 which I recently bought used does not have a lock code I can use (11345 doesn't work, I emailed the guy who sold it but his also fails). I have plenty of room on the internal card but the flash is down to like 10 megs free.