Follow up to my above comment: Disabling the local cdrom repository in my Synaptic settings seems to have worked around this problem.
To summarize:
-- go to System->Administration->Synaptic Package Manager->Settings->Repositories and uncheck the "cdrom with Ubuntu 9.04 'Jaunty Jackalope' checkbox.
-- killed 'cdrom' process that was hung above
-- Run System->Preferences->Appearance->Visual Effects to use "Extra" and trigger the driver search. Waited for a few minutes; saw some activity in 'top'
-- rebooted after it was done
After reboot, nVidia driver works, and I can change my Appearance -> Visual Effects settings.
I did notice my wireless connection (wlan0; Intel PRO/Wireless 5300 AGN [Shiloh] using 'iwlagn' driver ) had trouble right after I did this, and I had to disable and re-enable it in Network Manager before it finally reconnected. Not sure if this is related, but that's what I observed.
Follow up to my above comment: Disabling the local cdrom repository in my Synaptic settings seems to have worked around this problem.
To summarize: >Administration ->Synaptic Package Manager- >Settings- >Repositories and uncheck the "cdrom with Ubuntu 9.04 'Jaunty Jackalope' checkbox. >Preferences- >Appearance- >Visual Effects to use "Extra" and trigger the driver search. Waited for a few minutes; saw some activity in 'top'
-- go to System-
-- killed 'cdrom' process that was hung above
-- Run System-
-- rebooted after it was done
After reboot, nVidia driver works, and I can change my Appearance -> Visual Effects settings.
I did notice my wireless connection (wlan0; Intel PRO/Wireless 5300 AGN [Shiloh] using 'iwlagn' driver ) had trouble right after I did this, and I had to disable and re-enable it in Network Manager before it finally reconnected. Not sure if this is related, but that's what I observed.