Yesterday my PC was running fine all day, but when I turned it on at night, my desktop didn't appear and my taskbar was empty. I managed getting the PC to work by going into my task manager. Once I'm in there, i have all my bookmarks so I can get to my normal websites. However, there is no way to get to the Control Panel so I can back up my date and get rid of this problem. I also can't run my anti-virus software to see if that could get rid of the problem. Any suggestions?