This must have happened to a lot of guys like me. So here's the solution that I've figured out to fix this issue.
After trying so many ways, I decided to try out a remedy of my own and install a newer version of the NVIDIA driver.
Even though the driver I've installed via the "Additional Drivers" shows it as current, it's really not the latest version. But after manually installing the latest version of NVIDIA driver I managed to fix the problem.
If you ever run into the same problem using Mint 13. Try this -
Copy paste this code onto the Terminal to download the latest NVIDIA 302.17 driver
Code: Select all
wget -O nvidia-302.17_i386.deb http://dl.dropbox.com/u/87852128/NoobsLab.com/Nvidia/precise%20%26%20quantal/302.17/nvidia-current_302.17_i386.deb
wget -O nvidia-dev-302.17_i386.deb http://dl.dropbox.com/u/87852128/NoobsLab.com/Nvidia/precise%20%26%20quantal/302.17/nvidia-current-dev_302.17_i386.deb
sudo dpkg -i nvidia-302.17_i386.deb nvidia-dev-302.17_i386.deb
sudo rm nvidia-302.17_i386.deb nvidia-dev-302.17_i386.deb
After the installation, reboot your computer. That should do the trick.