A very noob question in F15/Gnome3/gnome-shell. Most graphics applications use Ctrl-dragging and Alt-dragging for a few functions. In F15/Gnome3, holding Alt while dragging the mouse moves the entire window. I used to disable that in previous Fedora versions from compiz (as it was responsible for this behavior), but F15 is not running compiz-fusion.
I tried looking in gnome-tweak-tool, and keyboard shortcuts under System Settings, but couldn't find it. Any idea how to disable it?