I can't log in.
I can't login, even though I've changed my password 2 times. The error message says "Incorrect password or account doesn't exist". I'm certain that I'm using the right password. I've played a single person game with the user name "GreenGoose12", but can't buy anything or do much more.
I had two days of problems with the Steam application. Once I got rid of it and just played off the browser, then there's no more problems logging in. I finally figured it out myself. Still I wish there was some more useful help here.