(BTW: Later saw 2 more Nvidia URLs for the same OS X 10.10.5 driver update (same version, info on page, etc.) here and here, but download links on all 3 pages are to the same file as a March 25th check.)
  

"New Release 7.5.26

CUDA driver update to support MAC OS X 10.11.4 and NVIDIA display driver 346.03.06f01

Supports Mac OS X 10.11.x, 10.10.x, 10.9.x

An alternative method to download the latest CUDA driver is within Mac OS environment. Access the latest driver through System Preferences > Other > CUDA. Click 'Install CUDA Update'. Supports all NVIDIA products available on Mac HW.

Note: this driver does not support the older generation GPUs with compute capability 1.x. To find out the compute capability of your GPU, consult the following links:
https://developer.nvidia.com/cuda-gpus
https://en.wikipedia.org/wiki/CUDA."

• How to reinstall OS X on your Mac
  
  
• How to install OS X on an external drive connected to your Mac
  
  
• (Troubleshooting) OS X: Bluetooth devices become unresponsive
  
  
• Use the CD or DVD drive from another computer with your Mac
  
  
• OS X: About System Information and System Profiler
  
  
• About Find My iPhone Activation Lock

More How-To, Troubleshooting & Tips for Mac/OS X/iOS Users from Airplay to Thunderbolt.
  

March 21st, 2016 News Archive
• Info/Downloads for OS X 10.11.4 Combo and Delta Updaters,
• Downloads of Security Update 2016-002 for OS X Yosemite and Mavericks
• About security content in OS X 10.11.4 and Security Update 2016-002
• iTunes 12.3.3 adds sync support for new iPhone SE and iPad Pro (w/download)
• OS X Server 5.1, compatible with OS X 10.11.4
• About the security content of OS X Server 5.1
• Apple Remote Desktop 3.8.5 Client Download
• Some Yosemite users reported problems with VNC after ARD 3.8.5 update
• Xcode 7.3 released
• About the security content of Xcode 7.3
• Apple TV (4th generation) Software Update 9.2 (aka tvOS 9.2)
• Apple TV 9.2 includes firmware update for Siri/Apple TV Remote
• About the security content of tvOS 9.2
• iOS 9.3 release notes (long list of 'improvements')
• About the security content of iOS 9.3
• watchOS 2.2 Information (release notes)
• About the security content of watchOS 2.2
• Apple "Loop You In" event keynote video
• Apple Introduces 9.7-inch iPad Pro
• Apple Introduces iPhone SE
• Apple Advances Health Apps with CareKit
• Apple Announces Advancements to ResearchKit
• Apple Support/Troubleshooting Article Updates:
  - How to Archive or make copies of your iCloud data
  - What to do before selling or giving away your Mac
  - Try safe mode if your Mac doesn't finish starting up
  - How to Use Bluetooth keyboards with your Apple TV
  - How to Use Siri on your Apple TV (4th generation)
  - About Search on your Apple TV (4th generation)
  - How to Dictate or enter text on your Apple TV (4th generation)
  - About AirPlay restrictions and Conference Room mode on your Apple TV
  - Transfer content from an iPhone, iPad, or iPod touch to a new device
  - What to do before selling or giving away your iPhone, iPad, or iPod touch
  - How to Delete photos & video synced from iTunes when you can't access the originals

For links to older news pages, see the Archives.