I am having a problem with my new XBOX 360 ... i have video and sound through the AV port but nothing via the HDMI port ... I have tried it with 3 new hdmi cables ... 3 more TVs ... Factory resets and god only knows what else, and i still havent solved my HDMI problem ... Do you have any solution ... P.S. I see that this is a very common problem and i am new into this so please advance me into here ... Thanks 🙁 🙁