http://ubuntuforums.org – I'm also still having this problem in 12.04. I want to assign a key to shift+F3 in emacs, but it gets turned into ";2R" Lots of *-f* combos have similar a effect. I have noticed that xterm does not have this problem, only gnome-terminal. Code: shift+f2 - ;2Q shift+f3 - ;2R shift+f4 - ;2S alt+f2 - ubuntu captures this chord alt+f3 - ;3R alt+f4 - ;3S shift+al (Hardware)