This tutorial shows how to install compiz-plugins-extra using Synaptic Package Manager in Ubuntu 12.04.1 LTS
STEPS
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1) Click Dash Home
2) Type synaptic
3) Click Synaptic Package Manager
4) Type your password
5) Click Authenticate
6) Click Search
7) Type compiz
8) Click Search
9) Scroll Down
10) Right-click compiz-plugins-extra
11) Click Mark for Installation
12) Click Apply
13) Click Apply again
14) After installation, click Close
15) Close Synaptic Package Manager
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