Just an update on this, we are currently suspecting it is an SElinux
issue due to these messages found in dmesg.
audit(1111455580.805:0): avc: denied { execmod } for pid=1187 comm=X
path=/usr/lib/libnvidia-tls.so.1.0.7167 dev=dm-0 ino=6851504
scontext=user_u:system_r:initrc_t tcontext=root:object_r:lib_t tclass=file
audit(1111455580.919:0): avc: denied { execmod } for pid=1187 comm=X
path=/usr/X11R6/lib/modules/drivers/nvidia_drv.so dev=dm-0 ino=7668683
scontext=user_u:system_r:initrc_t tcontext=root:object_r:lib_t tclass=file
You can follow the thread here at :
http://www.nvnews.net/vbulletin/showthread.php?p=571674#post571674
I'll not email out any more updates on this, if you want the
cause/solution see that url above.
Thanks.