My TV often fails to display a picture. I'll attempt to turn it on and the edge of the screen will flash like it's trying to start up, but it rarely does. Sound comes through fine, so I think it has to be a display issue of some sort. I get the same results when using the Component connection for HDTV and the VGA connection for use with the PC. Any ideas as to what the problem may be and how it can be fixed are greatly appreciated. Thanks.