CTRL+ shortcuts doesn't work after compiz-manager installation

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http://askubuntu.com – It was working on Gnome Fallback/Classic. But after compiz-manager package installation, I lost Ctrl + shortcut keys, they don't work anymore. For example, in web browser typing Ctrl+C on some text makes it gray, and don't get it copied. Deleting compiz-manager and reinstalling gnome didn't solve the problem. However, on Gnome Shell 3 all works fine. Please, help me to solve this. (HowTos)