Today's stupid question: remapping AltGr to control?

[David Gerard]

I have a Dell Mini 9 running Ubuntu 10.04 (xorg-server
2:1.7.6-2ubuntu7). I don't use the AltGr key *ever*, and am really
missing having a right Control key.

Can I remap AltGr to be a control key? So far I've failed utterly with
xmodmap and xkeycaps. Failed xmodmap command:

  xmodmap -e "keysym Alt_R = Control_L"

xkeycaps says that it thinks it's a Control but doesn't have a modifier.

Can this actually be done?


- d.