postfix failed to install under ubuntu

[Heike C. Zimmerer]

Peter <pcpc168 at sbcglobal.net> writes:

> running the command "dpkg -i postfix_2.3.3-1_amd64.deb", it prompts a
> text screen with "OK" button, but there is no way to move the mouse to
> OK button to click, typing "Enter" is useless as well.  I have to kill
> the process eventually.  (note: I use ssh to login to install).
>
> any suggestions to do it correctly?

Use TAB to move between fields, ENTER to accept.