i have had 3- ae500 projectors and they have all developed the same fault. the fault is this; after 5-hours of veiwing a white circle appears on screen, all three projectors i have had all had this problem. the circle appeared in different places on all projectors. panasonic say they are not awear of this fault but can not answer me why this is happening. to me it looks like a design fault as 3- projectors have develope this fault. if anyone has had this problem then please reply. many thanks.