If your graph looks different (axes are not visible, there is a grid of dots, etc.), you may have some format settings that have been changed. To correct this, you can reset your defaults. Click here for instructions on how to reset the defaults.
Otherwise, you probably have a function entered in your calculator whose graph is being displayed. To prevent this, follow these steps to turn off any functions you may have defined in the function editor:
(Y-VARS submenu)
You should now be able to obtain a standard graph that matches the one shown.