You may have zoomed-out. This commonly happens by accident using the scroll wheel on some mice. Try holding down the Ctrl key and hitting the 0 (zero) key. This will reset you to normal zoom. If that is still too small, you can zoom in using Ctrl and the + (plus) key. (If everything, everywhere on your computer is too small, you may want to switch to a lower screen resolution.)

Thanks for the ideas. I will try the smaller resolution. I have tried everything else. I have used the Control+ but must to it every time.