Well, i'm stumped.. So, I always used my Xbox 360 to play on my downstairs TV via HDMI and upstairs on my PC monitor via a hdmi to dvi converter. Sometimes i also player on my older TV with scart and it always worked fine. Now, I took my Xbox over to my friend and connected it to his TV via HDMI. After coming home my Xbox doesnt work on any of my tv's anymore and my PC monitor just displays a black screen. My TV just stays at no signal, my PC monitor just stays black, and scart only outputs sound (although i think that cable is brokeb since I cut it open so the HDMI and scart could go together so i could get sound on my non speaker monitor). Now, I took the Xbox to another friend with the same cable and my Xbox over there works just fine. Also the friend where i player it originally also works fine over there after testing it with the same hdmi cable again. Now i tried everything at home, from resetting all my settings on the console with another tv, to putting on the lowest res, to start up the console without hdd, to start up while doing the controller combo to reset the display. Nothing worked... Do you guys know what is going on? Is my console just busted or is there something i need to reset? Thanks in advance guys!