conflict on FC8 x86_64 - avahi

[Bjorge Solli]

I have an installed system, but get errors when doing the below 
commands. The error is always:

Transaction Check Error:
   file /usr/share/avahi/service-types.db from install of 
avahi-0.6.21-6.fc8.i386 conflicts with file from package 
avahi-0.6.21-6.fc8.x86_64

Note that I already have 64-bit version of avahi (and firefox) installed.

Commands to reproduce:
# yum groupinstall "GNOME Desktop Environment"
# yum install firefox
# yum install evolution evolution-connector
# yum groupinstall "Office/Productivity"

I get a similar error when running:
# yum groupinstall "Printing Support"

But now the conflicting packages are hpijs's 32 and 64-bit pkgs.

For full transcript of them all:
http://dpaste.com/hold/28268/

Any ideas of why this happens?

Bjørge