So i don't remember changing anything on my computer (Vista) but I used Ctrl + Alt + Delete to bring up the windows task manager to end a program that was running, like iTunes because it wouldn't close when i clicked the red X. Anyways, it closed what i wanted but my screen went black, and back on but the difference is, my background for the main screen is all black now and it still shows my icons. So i put my desktop background back to the way it was and now when i use Windows Task Manager there is no 3 buttons at the top to let me Minimize it, Restore Down, or close it. Then i tried right clicking it on the toolbar at the bottom of the screen but it wont pull the little window up! somebody please help me.