PDF Poof
My MacBookPro, circa 2000, running High Sierra 10.13.5 and Adobe Acrobat, suddenly will not open PDFs attached to inbound emails. I have tried reloading Acrobat, but am having trouble on the Adobe site. After step 2 in the 3 step download process, am transferred to a page selling Adobe's picture service and given no option but to sign up for it. Download does not complete. I have also tried a complete removal of power from computer, router, etc., to no avail.
