I bought a temporary UPS from best buy (APC, 1500VA), and did exactly what I was told to do by the instructions. Put the battery in, plugged in Mac Pro and monitor into the UPS, then plugged the UPS into the outlet, then turned it on. It made a beep and then my Mac Pro automatically started... not sure why that happened. Now all the monitor will display is this (attached) which I have never seen before in my life. What is going on?