I formatted my computer & installed Ubuntu 11.10 64-bit.
I have dual-monitors connected to a 1GB nVidia card.
Previously, it was working fine.
After installing, both monitors did get detected. But after installing restricted drivers (nVidia), the 2nd monitor doesn't show up in nVidia X Server Settings. I have just one - X Screen 0. There should be a X Screen 1.
Is there a way to manually fix this ?
"Screen" in this sense means X Screen, as in the whole viewport of what you see. You can have multiple monitors inside one screen.
The "X Server Display Configuration" section of nvidia-settings should show you your monitor settings for a given X Screen: