I've got a Dell Studio 1737 running Vista that I had connected to a Samsung LED either 7000 or 7100 that worked just fine except when I was playing certain movies there was a crackle that came through the audio usually during high bass moments. I'm not sure what I did but now the TV no longer finds the signal from my laptop, regardless of which HDMI port I plug it into. The HDMI connection works just fine when I hook it up to an Emerson LCD though. I'm dumbfounded that it was working fine and now it isn't. Any help would be appreciated!