Currently octave-forge has broken deps because of an ImageMagick rebuild performed just before the freeze:

{{{
octave-forge has broken dependencies in the development tree:
On ppc:
octave-forge-20080831-5.fc11.ppc requires libMagickCore.so.1
octave-forge-20080831-5.fc11.ppc requires libMagick++.so.1
On x86_64:
octave-forge-20080831-5.fc11.x86_64 requires libMagickCore.so.1()(64bit)
octave-forge-20080831-5.fc11.x86_64 requires libMagick++.so.1()(64bit)
On i386:
octave-forge-20080831-5.fc11.i586 requires libMagickCore.so.1
octave-forge-20080831-5.fc11.i586 requires libMagick++.so.1
On ppc64:
octave-forge-20080831-5.fc11.ppc64 requires libMagickCore.so.1()(64bit)
octave-forge-20080831-5.fc11.ppc64 requires libMagick++.so.1()(64bit)
Please resolve this as soon as possible.
}}}

New build octave-forge-20080831-7.fc11 that fixes this is here:

http://koji.fedoraproject.org/koji/buildinfo?buildID=93764

Without this build octave-forge will be completely uninstallable in the beta.