I cant access my taskbar or my start button. When i click on it all it does is ding. When i minimize things to the taskbar i cant pull them back up. The only way i can access them is if i push ctrl, alt, del. And access it from that window. In order to get my start menu to come up, i have to push the start menu button. It just wont work when i click on it with the mouse, same goes for the taskbar. All it does is ding. What can i do to fix this problem?