I must have changed something on my display........when I open an new app I can see it on the task bar on the bottom of my screen but I can not open the full screen view.
You may have accidentally dragged the program off screen. Easy fix: Run the application (make sure you see it on the taskbar), then change your desktop's screen resolution to something bigger or smaller.
If you truly dragged the program off screen, it should pop in to the screen after the change. Just remember what resolution your computer was on, so, that you can restore it afterwards.