How do I get my HDMI lead to work?

[Scraper]

I'm just throwing this out, in case you didn't know.

If you get only the other one to work, either HDMI or DVI, stick with that.
Quality wise, they are equal. Both of them are digital signals so the HDMI won't look any better than the DVI does now.

But if the HDMI connection is really important to you, I suggest that you take another HDMI cable from somewhere and see if that works.