> I copied the gzip file from www.bbbs.net downloads for intel Linux. Untested
> into user cadams home sir. See pwd command. Extracted. Ran both as local user
> and with sudo. File or directory error as before.

Just a thought here, and I am not sure if that version of Ubuntu has selinux or
 not, but if it does, have you tried setting it up to run in permissive mode
and then rebooting the machine?

--- BBBS/2 v4.10 Toy-3