I used Ubuntu Tweak to set up the lower left corner of my screen to activate scale/spread/show_windows/whatever_it's_called. When I upgraded to 12.10, it now shows all open windows from all work-spaces. It used to show only windows from the current workspace. However, when I use super-W to do the same thing, it only shows windows from the current workspace. What is going on here? This feature is one of the main reasons that I use Unity (along with Dash and HUD), and without it working properly my productivity is hurt a lot. Does anyone have a direction that I could look in to fix this?
Install CompizConfig Settings from the software center. Under Window Management, click on Scale for options. You're probably interested in the Behavior and Bindings tabs.