Computer Problem

My Daughter has a computer start up problem. She has to push the start button two to five times before it starts. Other than that it's working fine and can be on for hours with no problem. Told her just to leave it on all the time but ever since a friend of hers had a house fire that was determined to have started from the computer she won't leave it on when she isn't there.

Maybe it's as simple as just replacing the start button but wanted to hear from the experts on here whi...