What os are you running? Are you running any apps which create multiple desktops. Do you have multiple monitors, if so is the taskbar on the main screen? If any of these scenarios are true and you have Taskbar set to always be on top of other applications then the taskbar could be obscuring the Alt.Binz statusbar. I have seen windows act oddly when you try to extend the taskbar to virtual or numerous desktops.
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