Panasonic BD55 not working with HDMI

[astheskyburns]

I recently purchased the Panasonic BD55 and all was good until the other night we it suddenly stopped picking up a signal through HDMI. The player works fine when connect to the A/V cables it came with. However, when I use the HDMI cable I bought it says no input on my 47" Westinghouse LCD the player says HDMI on the little LED screen, but there is no picture, sound, nothing. So I don't know if the cables are bad or if there is something wrong with the player. Any Suggestions would be helpful because I couldn't find anyone else with this problem online. Thanks