Some trouble I experience with Ubuntu 12.04 and Gnome Classic w/o effects

• nautilus crash on removing external drives
• window shadows are partially left behind after the window was moved or closed
• after awaken from suspended mode, pressing the ctrl key caused a change in the display settings on a dual monitor setup. Each time the ctrl key was pressed the display setting changed between 1. extended displays 2. mirrored displays 3. one display turned off.
• in Firefox, Google applications tend to freeze for like 20 seconds and don't register clicks