Postfix install problem with Debian

Hello!

I'm trying to setup a postfix installation in Debian.

In the first attempt, I skipped by mistake the initial configuration screen, and I want to re-run it.

I run

Code:dpkg-reconfigure postfixthen it shows the initial config screen with the options to choose from. However, I can't move with the keys and can't choose any option.

Then I try to reinstall it. If I make this:

Code:dpkg -P postfixIt comes with dependency problems:
Code: mailutils depends on default-mta | mail-transport-agent; however:
Package default-mta is not installed.
Package exim4-daemon-light which provides default-mta is not installed.
Package mail-transport-agent is not installed.
Package postfix which provides mail-transport-agent is to be removed.
Package exim4-daemon-light which provides mail-transport-agent is not installed.how is that these packages where not installed alongside with postfix and the initial setup didn't complain?

What am I doing wrong?

Any help will be greatly appreciated.

Thanks!