I'm running 10.10.2 on a 27" Mac, which makes this problem doubly frustrating. I open an application (say, Safari) and it works fine. Then I open another application like Excel. The first open application (Safari) returns to the dock and then Excel opens. Obviously, I'd like to have both open at the same time and view them at the same time on the desktop. I have been all over the internet and posted this issue on apple support forums, but I can't get an answer from any source. How do I solve this problem -- able to view multiple apps on the desktop at one time?? Nick PS. I do have a dual monitor setup (again, imagine my frustration). The problem remains the same, even if I move an app to the second monitor. Open another app, and the first app is replaced by the second app. Help!!!