Huge mouse cursor arrow after installing Nvidia drivers [closed]

After installing the proprietary Nvidia drivers, my mouse cursor looks like this:

The arrow image is much larger than normal. How can I fix it?

Details

• How I installed the Nvidia drivers:

  1. Install linux-source, linux-headers-generic, and nvidia-current-updates, then reboot.
  2. Run sudo nvidia-xconfig.
  3. Run gksudo nvidia-settings, adjust the absolute position of my two monitors, and save the automatically generated xorg.conf.
  4. Apply the workaround for bug #1057000 to xorg.conf, then reboot.

• The cursor size settings referred to in this answer are normal.

• The problem does not happen when the mouse pointer is over Amarok or Firefox.

I got the same problem and in the end, I just switched from lightdm to gdm and that fixed it.

sudo dpkg-reconfigure gdm

then reboot.