HEELLPP!!! LOST MY PERSPECTIVE PLANE IN MAYA

I left Starbucks to move my car, put my 3d Connexion mouse in my pocket (still attached to my computer), came back to my seat 5 minutes later, and my perspective plane has DISAPPEARED!!!!! wtf?? In my 4 view panel, all other views can be seen but the PERSPECTIVE, nothing is there! I keep hitting the home button and nothing....the view cube disappeared too! HELP!!!