I've been thinking about this thing a lot, and came into that conclusion that it's actually quite awesome. In gaming that is. A lot of people seem to think that you adjust the DPI on the fly when you want to look around fast, and tone it down for more precise aiming. But wait, there's more also: I thought that the software mouse sensitivity is some kind of a multiplier for the actual DPI value of the mouse. Let's say that your sens. ingame is 2,4 and you want to pan your view around by 1920 pixels. Now let's assume that your DPI is 800. 2,4 times 800 = 1920, so the mouse moves to that spot you want. But there's a catch, it only moves there by 2.4 pixel increments, making it impossible for you to aim between those spots. If you want to aim between those spots (everyone wants to be more precise), you have to tone down the software mouse sens., let's say to about 1,2. Now your view pans around by 1.2 pixel increments, but now you'll notice that your view is panning around too slow, and you have to move your mouse like a maniac. To compensate this, raise your mouse DPI value. If you want to get to the exact same place as with your old 2,4 sensitivity, you're gonna have to set your mouse DPI value to 1600. Tadaa, now your view pans at a comfortable speed with more precision than before. This is just something I made up in my mind, I have no idea how it works in reality. But it seems quite rational to me. I experimented with the DPI setting while playing a game based on Unreal Engine 2.5 tech, with mouse sensitivity set to 25 and 0.75 INGAME. Obviously with the high sens. I had to tone down my mouse DPI. But this resulted in choppy panning of the sreen: Note: I exaggerated the values to give you a better idea of the situation http://i211.photobucket.com/albums/bb309/Xendance/RedOrchestra2008-03-0511-46-27-84.jpg http://i211.photobucket.com/albums/bb309/Xendance/RedOrchestra2008-03-0511-46-29-31.jpg The distance between those sights was the minimum distance I could pan my view around. I couldn't aim in the middle at all. So then I tried to set the mouse sens. to 0.75, which provided me the much needed precision in gaming. But then I also had to move my mouse about 1 meter in order to look around. So I figured that I could compensate this by setting my mouse DPI value to the max setting I could. http://i211.photobucket.com/albums/bb309/Xendance/RedOrchestra2008-03-0511-48-33-42.jpg http://i211.photobucket.com/albums/bb309/Xendance/RedOrchestra2008-03-0511-48-31-04.jpg Well check that out, veeeeery precise aiming and I didn't have to move my mouse around like a maniac. Now the aiming felt much, much more fluid than before. Thoughts? Ideas? Your own findings?