Re: GF6800 and new driver 9629 install prob
If you are used to Windows, you may have fallen for the fact that Linux makes a distinction between lowercase and uppercase characters - ie. 'NV' != 'nv'.
As the filename is so long, I alway just type the './NV' bit, then press the Tab key. The shell will then attempt to complete the filename for you. When you have more than one filename with that as the start, it will fill in up to the point where they differ. You can then type the next character of the filename you want, and press tab again. Very handy if you have several version of the Nvidia drivers downloaded ;-)
Please, be patient. Linux can take a bit of effort to get to grips with, but it is well worth persevering with.