Nvidia geforce 6150-unity 3d won't work

The Nvidia Geforce 6150 does not work with Unity. What should I do to fix it?

I am using Ubuntu 11.10.

I know this video card is old but I have resolved several older Nvidia card issues using the latest Nvidia drivers.

To install the latest drivers (assuming you have alread installed the proprietary drivers from the Additional Drivers app, do the following:

In the terminal type: sudo apt-add-repository ppa:ubuntu-x-swat/x-updates

Then update your repositories by typing in the terminal this: sudo apt-get update.

Afterwards go to your Update Manager. An updated version of the Nvidia card will appear. Install it and reboot the PC.

If you have not yet installed the proprietary drivers then open your dash and type "Drivers". The Additional Drivers icon app should appear. Install the Nvidia recommended driver from the list and reboot.

From my experience this has solved a Geforce FX 5600 problem I had, a Geforce 6200 problem and another Geforce 6400.

In my case, it was actually a case of removing the NVIDIA drivers.

My answer here helped.

As a bonus, my whole system seems to be running much much faster. I think the Nvidia driver was buggy and slowing everything down and not recognizing my video card's capability.