On ubuntu 11.10, with Unity desktop:
tapping top-right corner of the touchpad triggers 'Paste'
tapping top-left corner => 'Copy'
tapping bottom-right corner => 'Right-click'
(I've discovered this through experiments).
Obviously, that's intentional. There must be settings for that. I've looked through Settings->Mouse & Compiz Settings Manager but failed.
How do I disable these triggers?