as opposed to temporarily doing something else? Say I'm using an app, and start IE to get more info on that app. How does W8 determine that I'm not coming back? Is it the app's responsibility to save my work when Windows forces it closed, or is it Windows' job? If I can't close it when I'm done, how do I get it off Alt-Tab? (That was one of the confusing Alt-Tab behaviors I mentioned earlier. This may explain why apps I've tried to close keep showing up when I Alt-Tab.)