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dholt:
The forum's module now includes functionality to add a poll to any discussion if the webmaster wants to. It also includes capabilities to autosize images. In order to do the former, it needs the Polls module installed. In order to be able to resize images, it needs one of several graphic libraries available, with ImageMagick and NetPBM being the most powerful. The message you got means the site doesn't have the Poll module installed, so the forum users won't be able to assign polls to a thread. It also means the installation has no access to ImageMagick nor NetPBM nor GD1 library, either because they're not supported or because the configuration path points elsewhere. However, you have a very common option: you have GD2 library. This means the Forum module will be able to resize images, after all, if not in a very powerful way.
Cheers.