I have been in computer hell for three days, but I now have a new computer, courtesy of Best Buy, whose Geek Squad transferred over my files and bookmarks and such. The only thing that did not survive was the record of my wins and losses in tens of thousands of games of Spider Solitaire and such. Indeed, the game programs did not survive. So I start once again from scratch.
A good deal happened while I was in limbo. Comments to follow.