hdmi stopped working!

My hdmi stopped working, the component works fine but I can't see anything with it, I tried to buy new hdmi but didnt work, I also tried it on a few different tv's and still didn't work.

Can anyone please help? Thanks.

Sounds like the port is broken.

i have my hd av cable connected to my slim and my hdmi cable as well . but the only problem i have some time i get a red horizontal line on my screen. im running a sony 50" 1080p hdtv lcd tv . im not sure if it the monitor or the hdmi cable :roll: