Official Nvidia Site - This are the official drivers (Same as the ones in the PPA but the difference is that they do not upgrade automatically and have some issues when updating, uninstalling and installing (Very rare but it happens).
What PPAs are recommended when using any video card? 4. How to know which driver or package to install? 5. How to install a driver? 6. Difference between Proprietary Drivers? 7.
Ubuntu 12.04 Since 12.04, video drivers are maintained and updated more often. It is easier to handle and solve the problems that showed with older ones. You'll most likely won't need additional PPAs unless you have the latest Nvidia card.
How to know if my video card is supported in Ubuntu? For Troubleshooting Nvidia Problems or Overclocking Settings please see this answer which covers: 1. What common bugs are solved by using the latest drivers?
How to know which driver or package to install? Depending on how many video cards you have and if they are integrated or not, the installation method and packages to install will change from the PPA mentioned above which is for Single Cards.
As there was no answer to the "why does my line starts with "RH I'll do some gravedigging. So, the comes from the BOM (Byte Order Mark) which indicates the file is in UTF, and the way the bytes are written if necessary.
If you added one of the PPAs I mentioned above then you have a 99.99 chance that it will be supported. Checking the Nvidia Site or the PPA for support might yield a quicker answer, but in almost 100 of all cases, your video card.
Nouveau - This is the open source implementation of the Nvidia driver. They also do an amazing job ipad Spielautomaten katana and although they are not on par with the official drivers or the ones in the PPA (Even more so with the latest Nvidia cards the speed.