If you look at my post #248, you can change the /usr/bin/compiz script easily to make compiz always run with --use-root-window option (albeit this involves changing a file in /usr/bin, a technical "no-no", but in this case helpful to ensure a program always runs with the correct options, for all users).
@Spang
If you look at my post #248, you can change the /usr/bin/compiz script easily to make compiz always run with --use-root-window option (albeit this involves changing a file in /usr/bin, a technical "no-no", but in this case helpful to ensure a program always runs with the correct options, for all users).