I have recently installed Ubuntu 12.04 on my Macbook Pro, and I am trying to switch the "Switch Applications" shortcut from Alt-Tab to Ctrl-Tab. Changing the shortcut via the Keyboard application does not seem to have any effect, even after restarting. The application says that the "Switch Applications" shortcut is now Ctrl-Tab, but I can still only switch windows with Alt-Tab.
I have previously switched my control and command keys by modifying
~/.Xmodmap to the following, and suspect that there may be an unwanted interaction.
remove control = Control_L remove mod4 = Super_L Super_R keysym Control_L = Super_L keysym Super_L = Control_L keysym Super_R = Control_L add control = Control_L Control_R add mod4 = Super_L Super_R
Many thanks; I am having a wonderful time with Ubuntu so far.