@beazt, belive me or not deferences on some mices with 500Hz are preaty big, smothnes of croshair is way beter on mx510 for extample

read again waht im wroten, although im dont remember whan im was fell on mx518 or mine cameleon. it has nothing to do with dpi, is describe how often usb port sends new informations from mice to pc, more=beter, precysier, faster

yes. but quake input has problem with it and you have to set input buffer off. But its still dont run perfectly. So my opinion is, that 125Hz is enough. Its the same for me like 60 or 75 refresh rate on monitor. More is better but i dont see difference.

hes propably talked about his LCD, no wondef if he dosent see the deference then ']

if im remember right im saw screns of his panorama desktop