Contrary to some suggestions it would be a very odd HDMI port if it didn't include audio. After all, that is one whole huge part of the point of HDMI in the first place!
You have downloaded the latest drivers for your laptop's graphics/sound and installed them? I have had one instance where an ATI card refused to output audio to HDMI even then. I ended up having to do a lot of research to find the audio drivers from Realtek for the ATI card's audio system.
You have tried another cable? It's possible you have a dodgy connection there. If it is the case then you do not need to spend a huge sum on another cable. So long as you are not planning running the cable to the neighbours house a cheap as chips one from here
will work just as well as some Monster cable with an equally monstrous price.
You have tried connecting something else to the HTMI port on the TV you are trying to use or tried using another HDMI port on the TV that you know works? It's possible there's something wrong there too.
The original 32 bit junkie now snorting pure 64. Sky Broadband, Wired, Wireless, VoIP, 2 Macs, 2.5 Hackintoshes, 3.5 PCs, iPhone, OS X, Windows XP, Windows 7, Ubuntu.
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