Hey ximers. I have been having this issue for a while but never knew what was really happening.
Basically after a bit of playing (an hour or so) the mouse movement feels less and less 1-1 and more "floaty" and "sluggish". Not sure of other adjectives to describe it. However, I learned that if i unplug my mouse and plug it back in, it will sometimes help. Or if i unplug my XIM and plug it back in, it will sometimes help.
Was just wondering if anyone else had this issue.
It is not the mouse as I have tried on my Steelseries sensei, my logitech g9x, and my logitech g502 with the same results.