Ubuntu 9.04 Screen Resolution Issue

I installed Ubuntu 9.04 to dual boot on my desktop HP. No resolution is listed higher than 800x600.
I had a previous version of Ubuntu installed on a laptop and was able to use xorg.conf to make changes. This time it won't work.
Any solutions? Please explain fully as if I'm a child. I couldn't understand the 1 answer I found after googling.

edit: I have NVIDIA GeForce 7100

TIA,

 

You may require graphic drivers. Did you check if there are any proprietary drivers available for your graphic card under System > Administration > Hardware drivers?

If you get something and it says not in use, install them, reboot, see if the problem is remedied. Childish enough ??

Mrk

 

I had no hardware drivers listed and also low resolution after install. I
immediately checked for updates, and the restricted drivers were
then installed. Reboot and all was good. So, if you have not yet checked
for updates give it a go.

 

I'm pretty sure you are right. You have to install the updates BEFORE checking /System/Administration/Hardware Drivers and activating the recommended driver.

 

Many thanks to you all. It worked.

Thanks, daddy!

Regards,

 

And xorg.conf is dying a slow death. The newest versions of Xorg are attempting to take it out of the equation, which is why you will notice the contents of xorg.conf are very sparse these days.