@jwatte I somehow got it to work but the problem remains. Sometimes I get Z = 0 and it looks fine, Timmy, my marker is centered on the mouse. Sometimes the Z is not 0 and the x/y change as well and they flicker in the ok value set and the crappy one. I will make a video recording showing the coordinates and the cases it flickers. I can also archive my project and put it on dropbox if it would help.