| I use a wireless Logitech Trackman Marble for gamming. I experiance no lag or loss of accurace as long as the trackball is within 4' of the receiver. However there have been times where the receiver has been pulled off the table by a dog and left me with no mouse, or one that is jumppy and irractic. Same thing would happen if someone would take the receiver off the table and put it on the tower. |