Hopefully the title sums it up, but I'm looking for a way of being able to switch the Appearance Preferences' Visual Effects option to 'None', from a terminal/script (and optionally later to be able to switch back to 'Normal', though that's not such a big deal).
I'm a total Ubuntu-noob, so I can't tell you which window manager/widget-set/whatever I am using (Gnome 2.30.0?). It's on Ubuntu 10.4 patched up to date as of late July 2010.