Made a clean install of 14.04 beta2 (4cf9e5ef2c1c362317c90312c76cfda0 *ubuntu-14.04-beta2-desktop-i386.iso) and got all shortcuts for screenshots working on all sessions - Unity, GMOME Compiz, GNOME Metacity. It's great! Thank you!
Made a clean install of 14.04 beta2 (4cf9e5ef2c1c36 2317c90312c76cf da0 *ubuntu- 14.04-beta2- desktop- i386.iso) and got all shortcuts for screenshots working on all sessions - Unity, GMOME Compiz, GNOME Metacity.
It's great! Thank you!