My Mizar mouse was about 1year old installed on win10 with latest firmware and driver. About a month ago the cursor suddenly lag frequently and eventually not responding. I open up the mouse and noticed the plastic len was loosely attached to the chip. Therefore i clean the inner parts and added a paper cutting to hold the len firmly. Was able to play a few games( still lagging ) before it stop moving again. Any idea what to check or solve this problem?