Riva Tuner vs nHancer vs nTuneFolks,Im just curious which of these apps you use and why. Are the benefits to one over the other?ThanksTony

NTune is for performance and overclocking, both abilities that used to be part of the "regular" video driver. For some odd reason, nvidia decided to bundle the video card tuning with its motherboard tuning utility, and now it's a separate 40mb download. It works well, when it works. It usually ends up crashing Vista with a BSOD in an nv*.sys driver. This is odd, because it did the same exact thing on my older AMD box under XP. Nvidia support is less than helpful on this topic. On my new X38 chipset board, the tuning function for my video card comes up disabled because it tells me I need an nforce based chipset to tune the video card. This is odd, because a] nforce is a motherboard chipset driver which hardly has anything to do with video - ok, perhaps if you're running SLI which I am not) and b] i'm not tuning the motherboard, i'm tuning the video card :) ). Needless to say, Ntune is currently gathering dust in my recycling bin. Worth a shot if you're running an nforce based board.nHancer only allows for Nvidia video profile editing, and is working flawlessly for me. It is very easy to use, and it provides good help as to what each profile setting does. It doesn't like a lot of driver changes (installing new drivers all the time), as that can corrupt some profiles and cause it to stop working. If this happens, you must uninstall the video driver, boot in safe mode, run driver cleaner to delete the offending registry entries and files, reboot, reinstall and you're good to go. That hasn't happened to me once in Vista, but in XP, it was a hit or miss. nHancer is a must have in any toolbox.RivaTuner works well for me. It is very powerful, and thus also very dangerous as it exposes hardware tweaks that can really mess things up. However, for basic overclocking, it is relatively benign. I also like RivaTuner also because it has a hardware monitor capability that displays temperatures and voltages. The plugin architecture lets you also see add to the monitor your motherboard stats within the right plugin. Some come in the box, some you can download. Because it is very complex, Riva tuner can be hard to learn and master, and this is not the kind of tool you want to go blind with - you can damage hardware if you get into advanced settings and don't know what you're doing. Since I don't know what I'm doing, I stick with the basic overclock of memory, core, and shader.Another useful tool not in your list is ATITools, which unlike the name suggests, also works on Nvidia video cards. ATITools does install a kernel mode device driver, and because it is unsigned, it cannot work under Vista 64 (the 64 bit version prevents any unsigned drivers from being loaded unless you go through hoops at boot time - I don't want to press F8 all the time :) ). Outside of this, it has the basic functionality offered by RivaTuner and is easier to use. Even if the my o/s will not load the driver, I use the feature that displays a "fuzzy cube" to load test my video card while I tweak its O/C settings with Riva Tuner. Another must-have in the toolbox.Hope this helps,Etienne