what model do u own?
i had the exact same problem (with a 40gig model). all i had to do was to clean the lens with a common window cleaner and qtips (just watch on youtube how to open it). Works now like brand new.
here is my story: http://www.vgchartz.com/forum/thread.php?id=89708
Wenn killerspieler in killerspielen killerspieler killen, dann killen killerspieler in killerspielen killerspieler.







