How to remove comment pop-up when using the pencil tool

I cannot find a way to just free-hand draw on a document. I've used the pencil tool in the past, and that has worked before, but on this computer whenever I use the pencil tool to draw on the document, it creates a comments pop up box. Any idea how to disable that? Below is a screen shot of the pop-up I am referring to. I have tried looking in the options tab on the box, and there is a way to minimize that specific box, but if I draw another line it will pop up again.