I cant post the error code (an important part though is fatal screen error:no screens found) because i had to hop on my other computer to post this but heres the issue:


I recently installed amnesia the dark descent demo to see what the game was like but, my driver was not able to run it so i installed the NVIDIA driver in order to play better. Worst mistake of my life, i ran -xconfig for the driver and then did a reboot. When i did a reboot i was able to login perfectly but then i tried to startx it didnt work and i got the fatal screen error:no screens found. How do i fix this?Can i uninstall the driver?


Also im wanting to reset backtrack to default, is there a command to do so?

Greetingz!

Well, "resetting back to default" could be done by doing two things;

1) Replacing your xorg.conf with a known-good copy (if your Distribution even uses it)
2) Removing the nVIDIA driver (or replacing it with the one you had before).

The big question is; how did you install the nVIDIA driver?
Did you grab a bundle from nVIDIA and follow some random online guide, or are you using a Linux Distribution that has a supported version of the driver in their repository?

Better data gives better answers

Did you create xorg.conf.new & move to /etc/X11/xorg.conf?
Also like Xeleema asked did you install the correct module?
Post output of &

Well i got the drivers on the software center, installed and i tried the xconfig command, ill make sure to post the outputs of those commands

Even after xconfigure you have to go into single user mode log in as root.
you'll see xorg.conf.new

this is " backtrack " you say ?
backtrack 5 i am guessing

just rebuild the boot image .

You using BT you SHOULD already know HOW to make a new boot image ,just like spoofing your ip address
these are things that BT assumes that you " know like the back of your hand "

that is a normal everyday thing that you MUST do when moving from the opensource nouveau driver to the nvidia binary blob

backtrack was explicitly built for the VERY VERY experienced system CRACKER , White Hat CRACKERS .


however if you are a " new to linux" young and ,soon to be "script kiddy "

i would recommend you install the current Ubuntu ( if you want to stay in the "Ubuntu" family ) and get a few years of experience under your belt FIRST
then come back the BT.

Well thanks on that, im wondering, can i do a live boot off a cd with ubuntu and then remove backtrack 5 while im running ubuntu off the cd and set then install the contents from the cd?

Yes you can
choose either
"erase & use entire drive"
or
"Other"

Well i was able to get a cd burned with 12.04 but it seems to be a bit unstable or missing something as it failed to install grub any reason why this might have happened?

If you want stable try Debian
I've had that situation where grub didn't get install & there was a fault with the usb, so I reinstalled.

Problem solved, i simply installed ubuntu 12.04 but the 32 bit version even though i have a 64 bit machine (will that cause future problems?). I have an online site to back up my files so i think im going to move to another distro but im not sure right now since ubuntu seems the best for gaming right now but, finally got my computer running well.

32 bit distros run just fine on 64 bit hardware. The only caveat is that you are limited to 4G addressable memory. (that and you cannot run 64 bit apps, but that is seldom a major issue)
It's rare that an average home use will ever need more than 2G ram anyway so it shouldn't be an issue any time soon