There is an NVIDIA Linux Driver web forum. You can access it by going to http://forums.developer.nvidia.com and following the "Linux" link in the “GPU Unix Graphics” section. This is the preferable tool for seeking help; users can post questions, answer other users' questions, and search the archives of previous postings.
If all else fails, you can contact NVIDIA for support at:
But please, only send email to this address after you have explored
the Frequently Asked Questions and Common Problems chapters of this
document, and asked for help on the forums.developer.nvidia.com web
forum. When emailing
please include the
nvidia-bug-report.log.gz file generated by the
script (which is installed as part of driver installation), along
with a detailed description of your problem.
NVIDIA provides a technical contact for information about
potential security issues. Anyone who has identified what they
believe to be a security issue with an NVIDIA UNIX driver is
encouraged to directly contact the NVIDIA UNIX Graphics Driver
security email alias,
to report and evaluate any potential issues prior to publishing a
public security advisory.