After reading many forums, and trying many other themes, I found that all stock wordpress themes, had no issue with the right margin on bbpress content (and the submit button) from being cut off. Disabling all plugins also made no difference. So I went back to WooThemes and had another chat with a tech, and I explained all this to them. Nicole immediately knew what the problem was. I added the following to Canvas > Settings > Custom CSS:
/* ADDED FOR BBPRESS COMPATIBILITY */
fieldset { width: auto; }
Wallah!! That did it.
I asked her to please put this in the next WooThemes Canvas update, so others don’t have to spend days figuring this out.
