There are no such things as "stupid" questions. However if you think your question is a bit stupid, then this is the right place for you to post it. Please stick to easy to-the-point questions that you feel people can answer fast. For long and complicated questions prefer the other forums within the support section. Before you post please read how to get help
Sorry about that. I forgot I was in XFCE. There it works like I said. In Gnome the only thing I have found is alt+F1. This puts the applications menu on the desktop. There should be a way to do it with the mouse but I have not yet found it. Will keep looking.