(Apologies in advance if this is in the wrong place and/or someone has already asked. I looked but I didn't find anything on this particular issue.)
So my little brother hooked me with an Xbox for Christmas and of course, the first thing I do is ready up to play some Gears 3 on oh so beautiful 1080p HDMI format...well, yeah that didn't happen.
At the moment I have only have one HDMI cable and it's plugged into my Ps3. So I unplugged it from one and threw it onto my Xbox but the HUD doesn't come up. Just a message across my screen that reads, "Invalid Format". I have an LG FullHD 1080p 52inch TV but nothing is coming up. I tried using the cables the Xbox came with and it booted up correctly at 480. In the Xbox menu when I tried to change the format, the HD section is greyed out.
So why does my Ps3 play fine with the HDMI 1080p but my Xbox won't? Has this issue happened to anyone else? Any help would be awesome, thanks!