Frequently, my Taskbar ceases to hide. I think it might have something to do with open apps needing attention but I can't prove this and I'm not even sure it's true. I am using Windows 7 now - BUT I have had this same problem with Vista, XP Pro and OS's before that. It's only now that I'm searching for a fix (guess I was very lazy - sorry!!!). Can anyone help me? The only thing I've been able to find is to close Explorer.exe then retart it. That 'seems' to work - but it is a workaround, not a fix - and it happens often enough that it has become a huge annoyance.