Oh, one more thing. Microsoft Picture Manager was the file that was attempting to open the .pdf and giving me recently viewed pics from IE. I have been using various Windows for many years and have never had this happen before.
When I get a link to open a pdf in Windows 7, I get a page of pics from recently opened websites instead. This has happened dozens of times. It doesn't always happen. Sometimes I can open a pdf. I haven't been able to discern what makes the difference but it may be mostly when I get a pdf in...