Hi, I am new to the forum. I dont know where to post this question so i'll post it here 1st.. my pc background cannot click after i change wallpaper.. all my icons gone too.. when i press start > control panel everything hangs.. i can only move my mouse cursor and ctrl+alt+delete to run programs, but task manager cant go to control panel.. can anyone tell me what is the problem? to add on.. i cant visit My Computer too.. its like control panel.. hangs everything...