Check to make sure the boot argument is still there by typing
Code:sudo nvram boot-args
It will show you what is saved in nvram. If nvda_drv=1 is saved then whatever it says in system prefs is just cosmetic and doesn't matter.
Also, I realized you need to put quotation marks in the original boot-arg command so it would be
Code:sudo nvram boot-args="kext-dev-mode=1, nvda_drv=1"
The sudo nvram boot-args Command gives the following:
kext-dev-mode=1, nvda_drv=1
Do I need to re-enter the command with quotation marks?