YUM, is yellowdog update manager, which is a command line package manager. Other ones that RH based distros support are rug and yast, though yast may be suse linux only.
The problem is, IMO, with out actually physically seeing your machine is that you are not in the right path. You probably downloaded the installer script under your user name, then logged in as root and tried running it from the root's home directory, and it doesn't exist on the root's home directory.
In almost all Linux distros all user data is stored under /home/username and root is special so it get its own directory, /root. You do not need to logged in as root to install the script. You can do that via the sudo command.
So, if you downloaded under intelcrazy (for example if that was your user name) on your desktop it would be located under /home/intelcrazy/desktop or ~/Desktop. So, you can boot into run level 1 which is basically single user mode. Single user mode loads everything but X and some networking services, run level 5 is everything with X just FYI. See this document on how to boot into single user mode
http://www.redhat.com/docs/manuals/...ustom-guide/s1-rescuemode-booting-single.html
Now, once in single user mode it will eventually prompt you for a log in, just like it would for the gui except there is no GUI. So you would log in as intelcrazy, and then do the following code
Code:
sudo sh ~/Desktop/nvidiascript.sh
Obviously fill in the proper path. Now if you don't know this, you can always type the first two letters or so in each directory and then hit the tab button and it will auto fill. It will prompt you for your root password, enter it, then all you need to do afterwards is type reboot at the prompt and it should restart the whole system.
There is a HUGE reason why linux has and never will adopt the .exe. It is how it works by design, and windows makes everyone run as root users basically and gives applications direct kernel access via kernel hooks. Which is why you see thousands and thousands and thousands of viruses for windows. When you allow applications to run and modify the system with out proper permissions you allow things to easily be malicious. I wish windows software installs required admin passwords, that would cut down on a ton of crap out there for windows that is bad for it.