If you open up enough programs in Windows Vista they start go "group" together under one button on the Taskbar. Problems with this is you have to click on the button to identify all the other programs you have opened. If you want to not have similar programs group under one button on you Windows Vista Taskbar do the following. Right click a blank area on your Taskbar, click on Properties, click on the Taskbar Tab and uncheck "Group similar taskbar buttons" box. After which all of your programs will line up side-by-side on the Taskbar. Also, there's additional features on the properties of the Taskbar that include showing the Quick Launch Toolbar.

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