I have attached a screenshot of the two options given to me in the 'Additional Drivers' applet. After my upgrade to 12.04, I was on the 'post-release updates' version of the driver. I switched to the 'version current' driver and haven't experienced the crash (yet).
NVIDIA Corporation G92 [GeForce 9800 GT] (rev a2) Kernel: Ubuntu 3.2.0-24.37-generic 3.2.14 dpkg -l | grep nvidia ii nvidia-common 1:0.2.44 Find obsolete NVIDIA drivers ii nvidia-current 295.40-0ubuntu1 NVIDIA binary Xorg driver, kernel module and VDPAU library ii nvidia-current-updates 295.40-0ubuntu1 NVIDIA binary Xorg driver, kernel module and VDPAU library ii nvidia-settings 295.33-0ubuntu1 Tool of configuring the NVIDIA graphics driver ii nvidia-settings-updates 295.33-0ubuntu1 Tool of configuring the NVIDIA graphics driver ** Attachment added: "Screenshot from 2012-05-08 21:50:52.png" https://bugs.launchpad.net/ubuntu/+source/xorg-server/+bug/988892/+attachment/3137796/+files/Screenshot%20from%202012-05-08%2021%3A50%3A52.png -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xorg-server in Ubuntu. https://bugs.launchpad.net/bugs/988892 Title: Xorg crash To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg-server/+bug/988892/+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