Can’t get comment function working – DW Q&A

Hi there DesignWall,

LOVING your DW Q&A Plugin – by far the best I’ve tried, in look and most importantly set up – thank you!!
The only issue I’m having and it seems a peculiar one is the I can get the comment function on questions to work.

The comment box appears and you can type a comment in but there is no way to submit the comment and when I press enter it just goes to the next line… and again etc. How I actually post the comment? I know this probably an novice question but advice is greatly appreciated!!

Where is the button?!!