[SOLVED] Docky issue in Mint/Ubuntu: How to enable compositing?

Having a docky / Avant window navigator (AWN) gives a cool look to the desktop. From the day I started using Linux, I have always preferred to have a docky. My desktop with the AWN docky helps me to access all the common programs I need at one place, plus CPU user in the dock tells me how much CPU I am using at any point in time. Auto-hide feature doesn't shrink my desktop as well.

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