How to disable mouseover popup icons on launcher?

Posted by John on Ask Ubuntu See other posts from Ask Ubuntu or by John
Published on 2012-06-29T20:46:20Z Indexed on 2012/06/29 21:24 UTC
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12.04

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disable

If an application is open and its icon is contained in the launcher panel, moving the mouse over the launcher icon will cause a very annoying popup icon to appear, showing a small image of the open application. It is annoying because it lingers too long and covers other information. For example, it covers the menus that appear when I right-click on a launcher panel icon. How do I disable these mouseover popups? I don't necessarily want to disable the "text" mouseover popup, I only want to disable the image popups.
Thanks. Ubuntu 12.04, new install.

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