Nav Screen gone blank
Yesterday, for unknown reasons, the map of the Nav Screen in my wifes 2003 RX300 went blank. There was a white background with the cursor blinking, but no roads at all were visible. So today I disconnected the battery, hoping that it would reset itself, but now it's possibly worse. The audio still works, but on the Nav side, the left side buttons dont work at all, and there is a message in the middle of the start-up screen above the "I agree" button that states "Program disk is inserted." This message will not go away. Obviously I haven't inserted anything. The RX has 181K miles on it. Any help would be appreciated. Thanks.