NVIDIA has just announced the immediate availability for download of a new Beta version of its graphics driver for Linux operating systems, 337.12. The new Linux display driver, 337.12 Beta, is somewhat of an odd release. NVIDIA doesn’t usually publish Beta versions of its drivers, so the developers make it available in the short-lived branch. Nonetheless, a new major update has been released and comes with a quite a few changes and improvements. It’s also very important to note that this is the first driver from NVIDIA that features the ability to overclock and underclock certain GeForce GPUs in the GeForce GTX 400 series and later.