apt messed up after source package install

[markzimm@rmi.net]

I installed qmail from the debian source package (successfully) but now I
can't do an 'apt-get update'.

Here's what I get:

owl:~# apt-get update
Hit http://ftp.netgod.net x/ Packages
Hit http://ftp.netgod.net x/ Release
Reading Package Lists... Error!
E: Malformed Priority line
E: Error occured while processing qmail (NewVersion1)
E: Problem with MergeList /var/lib/dpkg/status
E: The package lists or status file could not be parsed or opened.

The qmail entry in /var/lib/dpkg/status is:

Package: qmail
Status: install ok installed
Priority: Imp
Section: mail
Installed-Size: 998
Maintainer: Jon Marler <jmarler@debian.org>
Version: 1.03-6
Provides: mail-transport-agent
Depends: libc6, netbase, procmail, ucspi-tcp
Suggests: mutt | mail-reader
Conflicts: mail-transport-agent
Conffiles:
 /etc/init.d/qmail d13c1ddbd2266f9f2fefa06bfa04fbb1
 /etc/qmail/users/assign d201adb2df926bd8d70114df42a0a603
 /etc/tcp.smtp b5a682a015bc0fd616f0584ae01a8446
Description: Secure, reliable, efficient, simple mail transport system
 qmail is a secure, reliable, efficient, simple message transfer agent. It
<--- long winded description follows --->

Any ideas on how to clean this up?

-- Mark Zimmerman