I have the following contents in my ~/.Xmodmap file. It seems a couple times a day (without rebooting or logging out) I need to rerun the command "xmodmap ~/.Xmodmap" to reset my settings. The only thing I can think is that it seems to happen when I walk away from my computer for a bit. Maybe it forgets the settings when the computer locks itself? remove control = Control_L remove mod1 = Alt_L keycode 64 = Control_L keycode 37 = Alt_L add control = Control_L add mod1 = Alt_L Anyone else seeing similar issues?