RivaTuner is the most powerful tweaking utility for NVIDIA display adapters running under Windows 98 / Windows 98 SE / Windows ME / Windows 2000 / Windows XP. The purpose of this utility is to give you access to the many undocumented features of Detonator drivers. All versions of Detonator drivers have a lot of undocumented registry entries. Some of them don?t affect anything, but there are some that are very useful. In general, they cannot give you big performance boost but they can improve image quality and solve some compatibility problems. More important fixes: Added Lightspeed Memory Architecture related options for GeForce3 based boards. Disabled texel alignment controls for GeForce3 boards on the Detonator IV and higher. New low level overclocking monitor. New low level core uses memory mapped I/O instead of VGA I/O ports. This allows to monitor the clock frequencies on non-primary NVIDIA display adapters. The previous low level overlocking monitor could also cause the system to hang during an attempt to read clock frequencies after resuming from suspended mode. This issue is fully addressed now. Added built-in 60Hz refresh rate fix for Windows 2000/XP. This fix enumerates all the display modes supported by your graphics hardware and allows it to use only the maximum supported refresh rate for each display mode. Added low level driver independent overclocking module for NVIDIA based display adapters. Now RivaTuner can directly program NVIDIA core and memory PLLs and set the clock frequencies bypassing the driver. I've added this module special for GeForce2 MX owners to work around the major overclocking problems, introduced in the DetonatorXP. Added databases for the Detonator 3.34 (w9x only), 3.56 (w9x only), 3.68 (w9x only), 3.72 (w9x only), 3.75 (w9x only), 3.76 (w9x only), 3.77 (w9x only), 4.20 (w9x only), 5.08, 5,1x, 6.1x, 6.26, 6.27, 6.3x, 21.83, 22.50 and 22.80. So warp to Guru of 3D and download Riva Tuner v2.0 RC8 or from our archive.