Perfect Ubuntu Server Postfix install problem

[Sneblot]

I am at step 15 on the ubuntu perfect server tutorial but when I go from

"In order to install Postfix with SMTP-AUTH and TLS do the following steps:

apt-get install postfix libsasl2-2 sasl2-bin libsasl2-modules procmail

You will be asked two questions. Answer as follows:

General type of mail configuration: <-- Internet Site
System mail name: <-- server1.example.com"

to

"Then run

dpkg-reconfigure postfix

Again, you'll be asked some questions:

General type of mail configuration: <-- Internet Site
System mail name: <-- server1.example.com
Root and postmaster mail recipient: <-- [blank]
Other destinations to accept mail for (blank for none): <-- server1.example.com, localhost.example.com, localhost.localdomain, localhost
Force synchronous updates on mail queue? <-- No
Local networks: <-- 127.0.0.0/8
Use procmail for local delivery? <-- Yes
Mailbox size limit (bytes): <-- 0
Local address extension character: <-- +
Internet protocols to use: <-- all"

Insted of being asked the questions laid out above I get this message instead

"/usr/sbin/dpkg-reconfigure: postfix is broken or not fully installed."

Anyone have any ideas on this?

[falko]

When was the first time you noticed that apt threw this error at you?

[Sneblot]

It gave me the error on install. I have been told to re-install it from a friend but I dont know how to uninstall it first.

[falko]

What's in /etc/apt/sources.list?