How do I Make the Comments Field Optional?

I created a form using the Form Solution Pack and it's working fine. But, I would like make the comments field optional for users. I don't want the "a value is required" message to pop up when they don't enter anything into the comments field. How do I do that?

Also, there seems to be a delay when I click on the link to the form on my website. Sometimes it only takes a second to go to the form page (probably because I've already visited it) and other times it seems like it takes 3-4 seconds for the page to show up. Why does it do that?

One more thing, I noticed that you guys came out with a new form creator extension for DreamWeaver. Do you think you will ever make a version for Expression Web?

Thanks,

Andre