Comment 17 for bug 880449

Confirmed fixed on my box using the proposed updates channel.

(For the less-tech savvy:)
Update Manager:
Settings (bottom left) -> Update -> Pre-released updates (precise-proposed)

Terminal:
apt-get update
apt-get install compiz-core
apt-get install compiz

(Steps could be changed a bit, but are my exact steps just in case a condensing changes the outcome)

Note: Installing the updates via Update Manager yielded an error of an untrusted source, despite whatever selection I made in the Settings window.