I have the AVR 3600. Recently I'm unable to have it display anything over 480. The other resolutions are all greyed out. I've unplugged all devices and changed to a different input on the TV to no avail. I've also reset the receiver using the power on/ok button press to "RESET" any ideas or is this thing bricked? It IS still under warranty for about a year.
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4/28/13 at 9:15am