Thanks, tuxmartin! I was able to install Ubuntu 11.04 with a Live USB in my desktop with a GeForce GT240. First, I created an USB boot drive with a 512Mb persistant file to install nvidia-current pack (actually, I think 256Mb would be enough). Then I booted Ubuntu in my laptop (which doesn't have a GeForce GT240), removed 'xserver-xorg-video-nouveau' pack and installed 'nvidia-current' pack using synaptic. So I booted the USB drive (with 'nvidia-current pack' installed) in my desktop with a GeForce GT240, and Ubuntu started with the Unity interface. So I proceeded to install Ubuntu in my harddrive. When the system finished the installation and asked me to reboot, I choosed to run the recuperation mode in Grub menu. Then I choosed the option to run the terminal in root mode with network interface, and, finaly, I installed the 'nvidia-current' pack ('apt-get install nvidia-current'). I rebooted the system and Ubuntu 11.04 runs fine now with my nvidia GT240!
Thanks, tuxmartin! I was able to install Ubuntu 11.04 with a Live USB in my desktop with a GeForce GT240. First, I created an USB boot drive with a 512Mb persistant file to install nvidia-current pack (actually, I think 256Mb would be enough). Then I booted Ubuntu in my laptop (which doesn't have a GeForce GT240), removed 'xserver- xorg-video- nouveau' pack and installed 'nvidia-current' pack using synaptic. So I booted the USB drive (with 'nvidia-current pack' installed) in my desktop with a GeForce GT240, and Ubuntu started with the Unity interface. So I proceeded to install Ubuntu in my harddrive. When the system finished the installation and asked me to reboot, I choosed to run the recuperation mode in Grub menu. Then I choosed the option to run the terminal in root mode with network interface, and, finaly, I installed the 'nvidia-current' pack ('apt-get install nvidia-current'). I rebooted the system and Ubuntu 11.04 runs fine now with my nvidia GT240!