MOST FRUSTRATING AND VEXING!!
Okay, after my earlier post, I set for a virus scan and then drove to town to run errands. Two hours later I returned and sent out several emails with no problem. Then I had some office chores to attend to, and two hours later wanted to send two more emails, but not I keep getting the popup asking for my user name and password. Because all is correct, I click OK, then after a few moments the popup returns. This time I enter my user name and password (with no changes) and click OK, then the popup returns. I even tried doing a cold boot to see if AVAST would correctly read the INI file again, with the same, negative results. It seems as if I can send email only when the puter is in a good mood!?! LOL! Except, it ain't funny. :'(