I recently upgraded to Verizon fiber optics for broadband and everything is great except my fax. I run XP and have an HP Officejet V40xi all-in-one. After the conversion to fiber my fax, which is on a stand alone phone line, no longer sends or receives. Has anyone had this problem? I can't get my fax line back to copper and neither Verizon nor HP have an answer. Any help?