Thank you saran for your concise and very good answer. I would never have thought to check the screensaver and I downloaded both programs you suggested. I downloaded VLC media player and got blinkx without wanting it, even though I was getting messaged during the downloading that my avast was blocking blinkx and potatoe clicker. The revouninstaller found and took care of those for me.
It is great that someone took the time to answer. Thanks again.