Uninstallable Providers

I have a repository created from the opensuse 11.3 32b DVD. This is the only repository I currently have on this machine. When I try to install the package “MozillaThunderbird”, I am asked to not forbid certain packages.
Error:


zypper install MozillaThunderbird
Loading repository data...
Reading installed packages...
Resolving package dependencies...

Problem: MozillaThunderbird-3.0.5-2.4.i586 requires libbonobo-2.so.0, but this requirement cannot be provided
  uninstallable providers: libbonobo-2.24.3-1.15.i586[openSUSE-11.3 11.3-1.82]
 Solution 1: Following actions will be done:
  do not forbid installation of libbonobo-2.24.3-1.15.i586[openSUSE-11.3 11.3-1.82]
  do not forbid installation of libgnome-2.30.0-2.11.i586[openSUSE-11.3 11.3-1.82]
 Solution 2: do not install MozillaThunderbird-3.0.5-2.4.i586
 Solution 3: break MozillaThunderbird by ignoring some of its dependencies

Choose from above solutions by number or cancel [1/2/3/c] (c): c

I know I can easily select solution 1 and be done. However this package is installed as part of an automatic install script. Why are these 2 packages forbidden from installation? And how can I unforbid them?

Hi,

Why do you have only one repo? You should add all the oss, non-oss, update and Additional package repositories - openSUSE to have the full benefit of you openSUSE.

I guess i should have mentioned this beforehand. I had all of the normal repositories at first for download.opensuse.org. However they were also conflicting with my internal repository. So as a troubleshooting step to get to the base of the problem I removed all foreign repos. I have a feeling it has something to do with my repo because the external repos also seemed to conflict with my repo. I searched a good couple of hours yesterday but could not find anything relevant to my problem. I need to fix this repo because we have too many computers to be downloading from the internet all the time. Are there any troubleshooting steps I could take to see exactly why I am getting this conflict of packages in my own single repo?

ps. This repo is created from a single opensuse 11.3 install DVD with no modifications.