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I have Ubuntu 11.10 (Oct, 2011).

I never use Unity-2d.

I downloaded various Lenses from the Software Center. Then I restarted the system.

But I don't see any differences! What do I have to do?

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up vote 2 down vote accepted

Lenses need to be stored in /usr/share/unity/lenses. Open that folder and you'll see that each lens is stored in it's own folder. At a minimum there will be a {lens name}.lens file. You will probably need to log out and log back in for the new lens to be recognized.

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Some lenses doesn't show up in Dash. For example, if you install the Calculator Lense, it will only appear if you type for example "2 * 3" on the search box. Some have "tabs" bellow the Dash. Just click on them and them you can make your search.

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Yes, I now that. For example I download, like others Lense, the Calculator Lense and when I type in the dash "2 * 3" or things like that, I wait and wait and wait but nothing appears! The Lenses don't work!! Were I can install the Lense? Those that are available in the Software Center I installed and didn't work. – Lucio May 9 '12 at 22:33
Try to use alt + f2 and write "unity --replace" – joelalmeidaptg May 10 '12 at 11:19

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