I tried switching back to unity 3D this morning and haven't seen the problem whilst using vim, gvim, urxvt and Emacs (all with "Ubuntu Mono" font) extensively. I am running an up-to-date 12.04 system.
Package details: $ dpkg -l|egrep "^ii *(nvidia|\<unity-|libunity|ttf-ubuntu-font-family)"|sort|awk '{printf "%s : %s\n", $2, $3}' libunity-2d-private0 : 5.4.0-0ubuntu1 libunity9 : 5.4.0-0ubuntu1 libunity-core-5.0-5 : 5.4.0-0ubuntu2 libunity-misc4 : 4.0.4-0ubuntu2 nvidia-common : 1:0.2.39 nvidia-current : 295.20-0ubuntu1 nvidia-settings : 295.20-0ubuntu1 ttf-ubuntu-font-family : 0.80-0ubuntu1+console unity-2d : 5.4.0-0ubuntu1 unity-2d-panel : 5.4.0-0ubuntu1 unity-2d-shell : 5.4.0-0ubuntu1 unity-2d-spread : 5.4.0-0ubuntu1 unity-asset-pool : 0.8.23-0ubuntu1 unity-common : 5.4.0-0ubuntu2 unity-greeter : 0.2.4-0ubuntu1 unity-lens-applications : 5.4.0-0ubuntu2 unity-lens-files : 5.4.0-0ubuntu1 unity-lens-music : 5.4.0-0ubuntu1 unity-lens-video : 0.3-0ubuntu1 unity-scope-musicstores : 5.4.0-0ubuntu1 unity-scope-video-remote : 0.3-0ubuntu1 unity-services : 5.4.0-0ubuntu2 -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to nvidia-graphics-drivers in Ubuntu. https://bugs.launchpad.net/bugs/861268 Title: text corruption in terminals (xterm, urxvt) and emacs To manage notifications about this bug go to: https://bugs.launchpad.net/unity/+bug/861268/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp