Holding control key and rolling mouse did not make a difference.
Drivers are up to date via HP support assistance
Changing resolution does not seem to affect the jigsaw puzzles
The change happened yesterday when I went to the jigsaw puzzles and a message appeared that new puzzles were being added so I could not access it . When I did access it later it was larger.
I guess I may just have to live with it..
Thanks for all of your help.
Donna