I had a Giant Monster attack my city. However there have been graphical glitches on my PC with SimCity for some reason. The Fire, Fireworks and Approval/Happyness pop up graphics or 3D graphs are all missing. There are no Road guides when placing roads. The city boarder lines are not appearing. When the Giant Monster first appeared the game screen flashed with a graphical glitch.I assume the game doesn't like my Radeon 7970 graphics card?