problem with ubuntu!!

I'm totally new to linux. i just installed ubuntu 8.04LTS, here is the problem i m facing,,
My fgx card is Nvidia 6200, using proprietary driver, the resolution is not going above 800*600 and refresh rate above 60Hz. then i modified stats of my monitor under etc/x11/xorg.conf (No joy!!) then i installed drivers by ENVY.. now the resolution is not going above 640*480!!! what to do..?? I'm a newbie... so plz explain briefly...

Go to terminal (Applications -> Accessories -> Terminal ) and type

Code:

sudo apt-get install nvidia-glx-new nvidia-settings

it will download n install nVidia drivers. Restart computer after that...

Now again go to Terminal n type

Code:

sudo nvidia-settings

It will bring nvidia settings control panel. Here you can make changes. N remember to write to xorg.conf option there.

@Garbage
Done as u said
but when nvidia xserver settings window opens following error comes

You do not appear to be using the NVIDIA X driver. Please edit your X configuration file (just run `nvidia-xconfig` as root), and restart the X server.

when i try to write nvidia-xconfig in terminal window i get the error

ERROR: Unable to write to directory '/etc/X11'.

what next??

now try... (in terminal.. ofc)

Code:

sudo nvidia-xconfig

Now, logout n login OR restart.
Then try to do sudo nvidia-setting again.

Did that.. restarted the system.. but still getting the same error.

You do not appear to be using the NVIDIA X driver. Please edit your X configuration file (just run `nvidia-xconfig` as root), and restart the X server.

one more thing.. under System>administration>hardware drivers
the status of gfx card is in use but under Enable there is no tick...

Go to Application -> Add/Remove

Then make there "All Available Applications" then try ....

i restarted the system again and now i'm getting better resolution (1024*768 @75hz).. but login screen size has become 4 times!! and i can only see only a quarter of it...

OS prompted to restart.. i did that.. i was again invited with config menu.. i chose nvidia 6series driver and daewoo 710b monitor..but now the resolution is again 800*600 (max)!!!

Check my xorg.conf from *www.garbage.pastebin.com/m313962d2

I think you have messed up your xorg.conf with the earlier manual edit. I'd recommend a fresh install, followed by the driver install through

System->Administration->Synaptic

Search and mark

nvidia-glx-new
nvidia-settings

Click apply.

System->administration->hardware drivers

and check the checkbox

Reboot

problem solved...
removed all the drivers then reinstalled Nvidia driver by ENVY...