Orijinal gönderinin sahibi: David ,
Those boxes are usually indicative of a bad connection to the LCD. Where the bad connection is would be anyone's guess. The cable could have been strained where it attaches to the LCD, or it could have been bent, folded, stretched along it's length. It could also be the connector on the ribbon side, the connector on the logic board side or simply both of them where they meet. You may want to replace the LCD to get new cabling. If that doesn't fix it you are likely going to be dealing with logic board damage.