This has been happening for the past few months. The icons have all changed to the ones you see in the picture. Clicking on these do absolutely nothing. I've tried reinstalling these through the Mac OS disk or downloading them from the apple website and I was unable to find them or they simply didn't work. As you can see, now System Preferences is inaccessible. I NEED this to work in order to do my job. Please help anyone. Thank you!