Hi everyone. I am new to the forum and am hoping you can help me. If I should be posting this somewhere else, please let me know. I have a Denon 1912 that I have been using with no problems for the past month and half with my Samsung 7000 series LCD TV. All of a sudden yesterday, when I turned it on to watch TV, there were these transparent blue boxes covering the TV screen. I could see the TV show playing behind it so I know the signal is going through. I checked the Blu-Ray player, and then same thing. When I tried my computer (hooked up to the same TV, but not through the receiver), they were not there. I tried swapping the HDMI cables. I tried a different input on the TV. I unplugged the receiver for a little while and tried again. I tried the "reset" per the manual. I called Denon support, and they told me to try the same stuff that I already did. Then they told me I would have to exchange it, or send it in for service. It is driving me crazy, cause it worked before iwht no issues. I hope someone can help. Thanks in advance.