I was recently trying to adjust my screen in XBMC. I went to the video settings and put my video to 16:9. As soon as i pushed "set" my screen went blue. My box still boots. I can hear the sounds from my dashboard (avalaunch), but no video whatsoever. If i put my hard drive in another box it works fine. But no matter what i put in mine no video. I am using an xecuter 2.6 with the m8+. I have redone the bios but it is no better. If i boot to flash bios i do get video, but it is all greyscale, no vidoe. Any ideas would be greatly appreciated.

try undoing the 16:9 crap or i dont know if youll under stand this but get another xbox that has the same exact settings as your was before it messed up xbox and use it as a guide for your non video xbox for example: on the working xbox get to the weather wich would be 5 dpad taps down so go over to your broken xbox and do 5 dpads to get to the weather(examples) if you dont get it ....sorry