hdmi unsupported HELP

guys please help me! what should I do?please comment or vid response or anything you could help.. Im using hdmi cable for my tv and it does not work for 720p nor 1080p mode! and when i use it for SD quality using HDMI it works fine..

before it works fine no problem at all, but suddenly ..i can't play on 720p.... it just says "Unsupported"

http://www.youtube.com/watch?v=Tt3QyY5BeYg

mmm that's strange, it does only have 1 entry port for hdmi? if so maybe the port got screw up it's hard to tell

yea i don't know what to do and why it happened.. that's why im here guys to help me out please! :(

please help me!