When logging on, or on shut down, is a background pattern/picture whatever. It's changed sometime in last week or two. I probably did it quite by accident and have no clue what I did.
At logon there used to be just a generic Dell logo deally with my logon name to click to logon and it disappeared and now I have picture I chose from a "cheesy" photo collection from my Win 7. I probably have my own "cheesy" photos I could use but this thing does not allow a right click to seem what format the pictures are in. Question is how to change background picture used at logon ?