The Autodesk discussion groups have two methods of access: using a web browser or a newsreader application. The Autodesk discussion groups related to DWF include:
Autodesk Design Review (formerly known as Autodesk DWF Composer)
AutoCAD Customer Files (2MB limit)
Inventor Customer Files (2MB limit)
These discussion groups are resources to help with your use of DWF and Autodesk products. There is a lot of good information listed in these discussion groups. Answers to the more frequently asked questions can be found there. If, after reviewing these discussion groups, you still do not find the answer to your questions, please feel free to post in the discussion group; however, Autodesk is under no obligation to respond to your post. There are a lot of experienced users that will be more than happy to help you out if possible. As such, the discussion groups are the basis for peer to peer support.
Please familiarize yourself with the ground rules for these discussion groups: http://discussion.autodesk.com/ground.jspa
Please be descriptive in your topic subjects. Subjects like "DWF Problem" or "HELP!" do not lend much insight and are often skipped over. A topic such as "How do I output a 3D DWF file from AutoCAD 2007?" is much more helpful. In addition, when you reply, leave the text in your posting from the previous posting. You can optionally remove text from posts earlier than that to avoid large files containing long threads.
As some newsreader programs cannot display HTML formatted messages correctly, please be sure to post your messages in plain text format. Most newsreaders have an option to format the messages in this manner.
If you are having display or crashing related issues please list your machine's specs: Processor, RAM, Operating System, Video Card, Autodesk DWF Viewer (or Autodesk Design Review) release and SP number. While it may not be due to these factors, it helps to determine the cause.
While posting of attachments is allowed in the discussion groups, it is suggested that only small files be posted there, and larger files should be posted to AutoCAD or Inventor Customer Files. This arrangement makes it easier on people who don't have high speed access. After posting to customer files, return to the main discussion group and post a notice that you have posted a file, and give the subject of the post, along with a detailed description of the problem.