Problems adding eSignature

I don't have an eSign account. I am trying to sign Google's HIPAA Business Associate Agreement. When I get to the signature field, it will not allow me to type my name in. I am allowed to sign my name with the mouse, only. However, it will not allow me to click on the "apply" button to enter my signature. I am only allowed to click "cancel" or "clear," both of which delete my signature. I cannot complete the form with those two options. Do I need to have an eSign account in order to fill out this document? I have no plans of using eSign with my business, as I must be HIPAA compliant.