can't install compiz after F6 -> F7 upgrade

[Rahul Sundaram]

pgaltieri at cox.net wrote:
> I just upgraded from F6 to F7.  The upgrade went fine, rebooted and installed all the latest updates.  I then wanted to install the compiz window manager so I could get the desktop effects.  When I did the yum -y install compiz it failed with the following error:
> 
> Transaction Check Error:
>   file /usr/share/man/man1/gst-launch-0.10.1.gz from install of gstreamer-0.10.12-1.fc7 conflicts with file from package gstreamer-0.10.12-1.fc7
> 
> notice that the 2 package names listed are the same.
> 
> How do I fix this?
> 
> How do you change window manager from the current metacity to compiz?

Is this a x86_64 box? What's the output of rpm -q gstreamer. Looks like 
you have duplicate packages installed in your system. package-cleanup 
from yum-utils can be useful.

Rahul