Hello All!! I have a used GC 2 months. Recently i bought Max Drive Pro, Case that fits Full DVD's etc. But the lens couldn't read a thing because it was used for 3 years.. So i opened my cube, and did what some How-To's said: I turned the screw (not the potensiometer) in the green square on the back of lazer.. I didn't have any polymeter at the time.. But nothing happened.. only a few times i succeeded in playing but not for a very long.. I also had some errors (red screen in Max Drive Pro) and the "shut Down the console.." So i bought an original all brand new lens.. And my problems continued!! WTF! I put the potensiometer at 180-190-200-29-220 Ohms and i played again my backups, but only for a few minutes [12-15mins max) My only question so to determine my problem is: What's the role of the screw in the green Square??? [Oeo??] What Shoul i do now?? Plese Help!! PS Sorry for the length of the post, and sorry for my English.. I am from Greece, and this is my first post @ Afterdawn!