Submit button being cut off

Hello,

I am using the current versions of WordPress and WooThemes Canvas and bbPress. See the “Subscribe” link and the “Submit” button at: https://drive.google.com/file/d/0BzmtEJeuWu1dNDFRNGRaMnNsVGM/view?usp=sharing

Subscribe is too far left justified (not a big problem) but the bigger problem is the Submit button is cut off on the right. It looks like there may be a problem with the entire right margin of bbPress.

I tried disabling all plugins other than bbPress, but there was no difference, so this is not a plug-in conflict.

I submit a ticket with wooThemes and they suggested I try the bbp Style Pack.

Thanks for spending so much time on that style pack. It looks like there are incredible features.

However on the “Topic/Reply Form” tab, there doesn’t appear to be any option to move the submit button to the left.

So I’m not sure if this plugin can help?

Any suggestions?

Thank so much.

The page I need help with: [log in to see the link]