Joerg Niendorf wrote:
> And exiting from tip "~." does usually not return to the shell prompt.

I never used "tip", but if it works the same way as "cu" does, there is
a subtle behavior in the handling of escape sequences; most of the time
you need to press "enter" first:

"A tilde (`~') appearing as the first character of a line is an escape
signal"

HTH,
-- 
khorben