All Nvidia drivers missing from Additional Drivers in Software & Updates

[art3mis]

Running Ubuntu Mate 17.10

I only ever install drivers through Software & Updates. Currently have driver version 384.11 installed as viewable thru Nvidia XServer Settings (attached) Normally I can see a list of various Nvidia driver versions when I select Additional Drivers in Software & Updates. But all Nvidia references are now gone. Why?

Also, can any Ubuntu experts help me prune my PPA list.
What should I remove?
What should I add?

[wolfman]

Hi art3mis,

you are looking at the wrong tab!:

As far as updating goes, check out the update guide:

Ubuntu Mate Update Guide

These are my own setting preferences, use at your own risk!. AN IMPORTANT NOTE FOR LINUX BEGINNERS. WHEN YOU ARE IN RECOVERY MODE, THE KEYBOARD DEFAULTS TO US ENGLISH, IF YOU HAVE ANY OTHER LANGUAGE KEYBOARD OTHER THAN US ENGLISH, WHEN YOU TYPE "Y" (FOR "YES"), IT MIGHT SHOW UP AS A DIFFERENT LETTER, ON MY KEYBOARD I MUST PRESS THE "Z" KEY WHICH EQUATES TO "Y" AS I HAVE A GERMAN KEYBOARD, JUST PRESS "BACKSPACE" AND HIT A DIFFERENT KEY UNTIL YOU SEE THE "Y" SHOW UP!. Click on "Subscribe…