Here is what happens in syslog when I try to run nvidia-settings now.
Jun 4 10:53:39 bcardon-pluto kernel: [ 1334.242693] nvidia-settings[6296]: segfault at 20 ip 00007feaae1b192a sp 00007fffc060dd58 error 4 in libc-2.19.so[7feaae128000+1bc000]
Here is what happens in syslog when I try to run nvidia-settings now.
Jun 4 10:53:39 bcardon-pluto kernel: [ 1334.242693] nvidia- settings[ 6296]: segfault at 20 ip 00007feaae1b192a sp 00007fffc060dd58 error 4 in libc-2. 19.so[7feaae128 000+1bc000]