can't install compiz after F6 -> F7 upgrade

[pgaltieri at cox.net]

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?

Thanks,
Paolo