Hello everyone! I have a Intel iMac 20". I just installed a bunch of software updates yesterday... all from the apple updater. So after update I chose shut down and went to bed. This morning when I tried to boot, Mac OS stopped loading and all I get is a blue screen. Does anyone now how to fix this issue? I wante to call Apples support, but they are closed today and I really need to get into Mac OS today. Any help greatly appreciated! Thanks in advance!