Last week, we reported on NVIDIA's driver troubles with the GeForce 364.47 update being pulled from distribution. The drivers that were supposed to add support for Tom Clancy's The Division wound up doing a number on many computers, with issues so widespread the GPU company pulled the plug and encouraged everyone to either roll back their drivers or update to the then beta 364.51 update. Now that the 364.51 package has been WHQL certified, NVIDIA has pushed it as the latest stable driver release. Unfortunately, the latest drivers have proven to be anything but stable for a number of users, with NVIDIA's official feedback thread on the GeForce forums reaching 65 pages of discussion from both 364.47 and 364.51.
Many of the posts in the thread are complaining of problems ranging from mouse pointers going invisible to completely unbootable systems that aren't remedied by a system restore point. Multiple monitor setups and laptops are common denominators in reports of 364.51 installation going awry, so GTX card owners who have yet to update their drivers may have better results disconnecting all but one display prior to installation. Some users have also reported installing the driver directly without going through the GeForce Experiernce app and having no problems with multi monitor or SLI setups.
Unfortunately, the issues aren't specific to any one card. Issues are being reported on cards ranging from the GTX 660 to the GTX 980. SLI issues appear to stem from secure boot and CSM in your motherboard settings, so users having problems on that front should try disabling secure boot and making sure CSM is enabled. NVIDIA hasn't issued any statement yet about reported problems with 364.51, but they do appear to be looking into the reported issues. Until there's a new driver update or word from NVIDIA, users should install 364.51 at their own risk. Some users have reported having no problems after rolling back to 362.00, so that's an option to consider if the latest update causes problems.