Hi. I just got a new Logitech mouse which gives 800dpi. However, I measured that im getting about 400dpi under a recent XFree version and Debian Linux. Changing the "Resolution" to "800" or anything more does not help - it appears using the generic PS/2 protocol will not enable me to get more than about 400 dpi. This was measured with xset m 0 0 enabled, no acceleration. Using acceleration will of course speed up the mouse, but you're skipping some pixels, and this will give a false figure. I also tried setting the mouse in usb, but still got about 400 dpi. The mouse drivers list given for xfree under http://www.xfree86.org/4.3.0/mouse4.html doesnt seem to help. I dont see how using any of these drivers would give me more dpi. Here is the config file im using in my XF86Config-4: Section "InputDevice" Identifier "Configured Mouse" Driver "mouse" Option "CorePointer" Option "Device" "/dev/psaux" Option "Protocol" "PS/2" Option "Resolution" "800" Option "ZAxisMapping" "4 5" Option "Buttons" "5" EndSection P.M _______________________________________________ XFree86 mailing list XFree86@xxxxxxxxxxx http://XFree86.Org/mailman/listinfo/xfree86