Is there a way to prevent the "All rows required" error message from popping up in a matrix?

Also, as a follow up, is there a way to prevent the "All rows required" error message from popping up in a matrix? Every time I check one box, I'm flashed the error message before I can complete the rest.

It seems to me that you are referring to the "form-line-error message" that pops-up warning that every row in the matrix is required and you do not want to show that on your form.

You can easily fix this problem by injecting this css code below to hide it.

#cid_10 div.form-error-message, #cid_11 div.form-error-message {

    display : none;

}

Perfect! That's exactly what I needed. Thanks!