When I move an unmaximized open window out of the way (e.g. for copying between two apps), and it's partially (e.g. 1/2 or 3/4th of its surface) into the neighbouring workspace, it immediately snaps back so that the entire window remains inside the current workspace.
This is happening ever since i moved from Ubuntu 3D desktop environment with Unity (when everything was fine) to Gnome Classic with gnome-panels and disabled the unity plugin (I have 12.04 64-bit).
I tried lots of different compiz settings in ccsm, but I can't seem to find the right one. I would like the windows to stay where I put them, even if that means they are 80% in a neighbouring workspace.